mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-18 10:31:57 +00:00
103683c4cb
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205301 91177308-0d34-0410-b5e6-96231b3b80d8
2143 lines
75 KiB
C++
2143 lines
75 KiB
C++
//===- ARM64Disassembler.cpp - Disassembler for ARM64 -----------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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//
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//===----------------------------------------------------------------------===//
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#define DEBUG_TYPE "arm64-disassembler"
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#include "ARM64Disassembler.h"
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#include "ARM64Subtarget.h"
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#include "MCTargetDesc/ARM64BaseInfo.h"
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#include "MCTargetDesc/ARM64AddressingModes.h"
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#include "llvm/MC/MCInst.h"
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#include "llvm/MC/MCExpr.h"
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#include "llvm/MC/MCContext.h"
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#include "llvm/MC/MCFixedLenDisassembler.h"
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#include "llvm/Support/Debug.h"
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#include "llvm/Support/MemoryObject.h"
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#include "llvm/Support/TargetRegistry.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/Format.h"
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#include "llvm/Support/raw_ostream.h"
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// Pull DecodeStatus and its enum values into the global namespace.
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typedef llvm::MCDisassembler::DecodeStatus DecodeStatus;
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// Forward declare these because the autogenerated code will reference them.
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// Definitions are further down.
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static DecodeStatus DecodeFPR128RegisterClass(llvm::MCInst &Inst,
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unsigned RegNo, uint64_t Address,
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const void *Decoder);
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static DecodeStatus DecodeFPR128_loRegisterClass(llvm::MCInst &Inst,
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unsigned RegNo,
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uint64_t Address,
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const void *Decoder);
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static DecodeStatus DecodeFPR64RegisterClass(llvm::MCInst &Inst, unsigned RegNo,
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uint64_t Address,
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const void *Decoder);
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static DecodeStatus DecodeFPR32RegisterClass(llvm::MCInst &Inst, unsigned RegNo,
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uint64_t Address,
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const void *Decoder);
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static DecodeStatus DecodeFPR16RegisterClass(llvm::MCInst &Inst, unsigned RegNo,
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uint64_t Address,
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const void *Decoder);
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static DecodeStatus DecodeFPR8RegisterClass(llvm::MCInst &Inst, unsigned RegNo,
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uint64_t Address,
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const void *Decoder);
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static DecodeStatus DecodeGPR64RegisterClass(llvm::MCInst &Inst, unsigned RegNo,
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uint64_t Address,
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const void *Decoder);
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static DecodeStatus DecodeGPR64spRegisterClass(llvm::MCInst &Inst,
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unsigned RegNo, uint64_t Address,
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const void *Decoder);
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static DecodeStatus DecodeGPR32RegisterClass(llvm::MCInst &Inst, unsigned RegNo,
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uint64_t Address,
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const void *Decoder);
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static DecodeStatus DecodeGPR32spRegisterClass(llvm::MCInst &Inst,
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unsigned RegNo, uint64_t Address,
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const void *Decoder);
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static DecodeStatus DecodeQQRegisterClass(llvm::MCInst &Inst, unsigned RegNo,
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uint64_t Address,
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const void *Decoder);
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static DecodeStatus DecodeQQQRegisterClass(llvm::MCInst &Inst, unsigned RegNo,
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uint64_t Address,
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const void *Decoder);
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static DecodeStatus DecodeQQQQRegisterClass(llvm::MCInst &Inst, unsigned RegNo,
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uint64_t Address,
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const void *Decoder);
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static DecodeStatus DecodeDDRegisterClass(llvm::MCInst &Inst, unsigned RegNo,
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uint64_t Address,
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const void *Decoder);
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static DecodeStatus DecodeDDDRegisterClass(llvm::MCInst &Inst, unsigned RegNo,
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uint64_t Address,
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const void *Decoder);
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static DecodeStatus DecodeDDDDRegisterClass(llvm::MCInst &Inst, unsigned RegNo,
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uint64_t Address,
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const void *Decoder);
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static DecodeStatus DecodeFixedPointScaleImm(llvm::MCInst &Inst, unsigned Imm,
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uint64_t Address,
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const void *Decoder);
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static DecodeStatus DecodeCondBranchTarget(llvm::MCInst &Inst, unsigned Imm,
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uint64_t Address,
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const void *Decoder);
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static DecodeStatus DecodeSystemRegister(llvm::MCInst &Inst, unsigned Imm,
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uint64_t Address, const void *Decoder);
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static DecodeStatus DecodeThreeAddrSRegInstruction(llvm::MCInst &Inst,
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uint32_t insn,
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uint64_t Address,
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const void *Decoder);
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static DecodeStatus DecodeMoveImmInstruction(llvm::MCInst &Inst, uint32_t insn,
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uint64_t Address,
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const void *Decoder);
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static DecodeStatus DecodeUnsignedLdStInstruction(llvm::MCInst &Inst,
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uint32_t insn,
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uint64_t Address,
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const void *Decoder);
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static DecodeStatus DecodeSignedLdStInstruction(llvm::MCInst &Inst,
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uint32_t insn, uint64_t Address,
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const void *Decoder);
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static DecodeStatus DecodeExclusiveLdStInstruction(llvm::MCInst &Inst,
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uint32_t insn,
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uint64_t Address,
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const void *Decoder);
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static DecodeStatus DecodePairLdStInstruction(llvm::MCInst &Inst, uint32_t insn,
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uint64_t Address,
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const void *Decoder);
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static DecodeStatus DecodeRegOffsetLdStInstruction(llvm::MCInst &Inst,
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uint32_t insn,
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uint64_t Address,
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const void *Decoder);
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static DecodeStatus DecodeAddSubERegInstruction(llvm::MCInst &Inst,
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uint32_t insn, uint64_t Address,
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const void *Decoder);
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static DecodeStatus DecodeLogicalImmInstruction(llvm::MCInst &Inst,
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uint32_t insn, uint64_t Address,
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const void *Decoder);
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static DecodeStatus DecodeModImmInstruction(llvm::MCInst &Inst, uint32_t insn,
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uint64_t Address,
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const void *Decoder);
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static DecodeStatus DecodeModImmTiedInstruction(llvm::MCInst &Inst,
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uint32_t insn, uint64_t Address,
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const void *Decoder);
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static DecodeStatus DecodeAdrInstruction(llvm::MCInst &Inst, uint32_t insn,
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uint64_t Address, const void *Decoder);
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static DecodeStatus DecodeBaseAddSubImm(llvm::MCInst &Inst, uint32_t insn,
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uint64_t Address, const void *Decoder);
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static DecodeStatus DecodeUnconditionalBranch(llvm::MCInst &Inst, uint32_t insn,
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uint64_t Address,
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const void *Decoder);
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static DecodeStatus DecodeSystemCPSRInstruction(llvm::MCInst &Inst,
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uint32_t insn, uint64_t Address,
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const void *Decoder);
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static DecodeStatus DecodeTestAndBranch(llvm::MCInst &Inst, uint32_t insn,
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uint64_t Address, const void *Decoder);
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static DecodeStatus DecodeSIMDLdStPost(llvm::MCInst &Inst, uint32_t insn,
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uint64_t Addr, const void *Decoder);
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static DecodeStatus DecodeSIMDLdStSingle(llvm::MCInst &Inst, uint32_t insn,
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uint64_t Addr, const void *Decoder);
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static DecodeStatus DecodeSIMDLdStSingleTied(llvm::MCInst &Inst, uint32_t insn,
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uint64_t Addr,
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const void *Decoder);
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static DecodeStatus DecodeVecShiftR64Imm(llvm::MCInst &Inst, unsigned Imm,
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uint64_t Addr, const void *Decoder);
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static DecodeStatus DecodeVecShiftR64ImmNarrow(llvm::MCInst &Inst, unsigned Imm,
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uint64_t Addr,
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const void *Decoder);
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static DecodeStatus DecodeVecShiftR32Imm(llvm::MCInst &Inst, unsigned Imm,
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uint64_t Addr, const void *Decoder);
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static DecodeStatus DecodeVecShiftR32ImmNarrow(llvm::MCInst &Inst, unsigned Imm,
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uint64_t Addr,
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const void *Decoder);
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static DecodeStatus DecodeVecShiftR16Imm(llvm::MCInst &Inst, unsigned Imm,
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uint64_t Addr, const void *Decoder);
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static DecodeStatus DecodeVecShiftR16ImmNarrow(llvm::MCInst &Inst, unsigned Imm,
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uint64_t Addr,
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const void *Decoder);
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static DecodeStatus DecodeVecShiftR8Imm(llvm::MCInst &Inst, unsigned Imm,
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uint64_t Addr, const void *Decoder);
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static DecodeStatus DecodeVecShiftL64Imm(llvm::MCInst &Inst, unsigned Imm,
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uint64_t Addr, const void *Decoder);
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static DecodeStatus DecodeVecShiftL32Imm(llvm::MCInst &Inst, unsigned Imm,
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uint64_t Addr, const void *Decoder);
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static DecodeStatus DecodeVecShiftL16Imm(llvm::MCInst &Inst, unsigned Imm,
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uint64_t Addr, const void *Decoder);
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static DecodeStatus DecodeVecShiftL8Imm(llvm::MCInst &Inst, unsigned Imm,
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uint64_t Addr, const void *Decoder);
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#include "ARM64GenDisassemblerTables.inc"
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#include "ARM64GenInstrInfo.inc"
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using namespace llvm;
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#define Success llvm::MCDisassembler::Success
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#define Fail llvm::MCDisassembler::Fail
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static MCDisassembler *createARM64Disassembler(const Target &T,
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const MCSubtargetInfo &STI) {
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return new ARM64Disassembler(STI);
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}
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DecodeStatus ARM64Disassembler::getInstruction(MCInst &MI, uint64_t &Size,
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const MemoryObject &Region,
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uint64_t Address,
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raw_ostream &os,
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raw_ostream &cs) const {
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CommentStream = &cs;
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uint8_t bytes[4];
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Size = 0;
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// We want to read exactly 4 bytes of data.
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if (Region.readBytes(Address, 4, (uint8_t *)bytes) == -1)
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return Fail;
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Size = 4;
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// Encoded as a small-endian 32-bit word in the stream.
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uint32_t insn =
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(bytes[3] << 24) | (bytes[2] << 16) | (bytes[1] << 8) | (bytes[0] << 0);
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// Calling the auto-generated decoder function.
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DecodeStatus result =
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decodeInstruction(DecoderTable32, MI, insn, Address, this, STI);
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if (!result)
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return Fail;
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return Success;
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}
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static MCSymbolRefExpr::VariantKind
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getVariant(uint64_t LLVMDisassembler_VariantKind) {
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switch (LLVMDisassembler_VariantKind) {
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case LLVMDisassembler_VariantKind_None:
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return MCSymbolRefExpr::VK_None;
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case LLVMDisassembler_VariantKind_ARM64_PAGE:
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return MCSymbolRefExpr::VK_PAGE;
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case LLVMDisassembler_VariantKind_ARM64_PAGEOFF:
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return MCSymbolRefExpr::VK_PAGEOFF;
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case LLVMDisassembler_VariantKind_ARM64_GOTPAGE:
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return MCSymbolRefExpr::VK_GOTPAGE;
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case LLVMDisassembler_VariantKind_ARM64_GOTPAGEOFF:
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return MCSymbolRefExpr::VK_GOTPAGEOFF;
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case LLVMDisassembler_VariantKind_ARM64_TLVP:
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case LLVMDisassembler_VariantKind_ARM64_TLVOFF:
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default:
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assert(0 && "bad LLVMDisassembler_VariantKind");
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return MCSymbolRefExpr::VK_None;
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}
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}
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/// tryAddingSymbolicOperand - tryAddingSymbolicOperand trys to add a symbolic
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/// operand in place of the immediate Value in the MCInst. The immediate
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/// Value has not had any PC adjustment made by the caller. If the instruction
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/// is a branch that adds the PC to the immediate Value then isBranch is
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/// Success, else Fail. If the getOpInfo() function was set as part of the
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/// setupForSymbolicDisassembly() call then that function is called to get any
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/// symbolic information at the Address for this instrution. If that returns
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/// non-zero then the symbolic information it returns is used to create an
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/// MCExpr and that is added as an operand to the MCInst. If getOpInfo()
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/// returns zero and isBranch is Success then a symbol look up for
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/// Address + Value is done and if a symbol is found an MCExpr is created with
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/// that, else an MCExpr with Address + Value is created. If getOpInfo()
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/// returns zero and isBranch is Fail then the the Opcode of the MCInst is
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/// tested and for ADRP an other instructions that help to load of pointers
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/// a symbol look up is done to see it is returns a specific reference type
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/// to add to the comment stream. This function returns Success if it adds
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/// an operand to the MCInst and Fail otherwise.
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bool ARM64Disassembler::tryAddingSymbolicOperand(uint64_t Address, int Value,
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bool isBranch,
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uint64_t InstSize, MCInst &MI,
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uint32_t insn) const {
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LLVMOpInfoCallback getOpInfo = getLLVMOpInfoCallback();
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struct LLVMOpInfo1 SymbolicOp;
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memset(&SymbolicOp, '\0', sizeof(struct LLVMOpInfo1));
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SymbolicOp.Value = Value;
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void *DisInfo = getDisInfoBlock();
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uint64_t ReferenceType;
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const char *ReferenceName;
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const char *Name;
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LLVMSymbolLookupCallback SymbolLookUp = getLLVMSymbolLookupCallback();
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if (!getOpInfo ||
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!getOpInfo(DisInfo, Address, 0 /* Offset */, InstSize, 1, &SymbolicOp)) {
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if (isBranch) {
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if (SymbolLookUp) {
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ReferenceType = LLVMDisassembler_ReferenceType_In_Branch;
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Name = SymbolLookUp(DisInfo, Address + Value, &ReferenceType, Address,
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&ReferenceName);
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if (Name) {
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SymbolicOp.AddSymbol.Name = Name;
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SymbolicOp.AddSymbol.Present = Success;
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SymbolicOp.Value = 0;
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} else {
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SymbolicOp.Value = Address + Value;
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}
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if (ReferenceType == LLVMDisassembler_ReferenceType_Out_SymbolStub)
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(*CommentStream) << "symbol stub for: " << ReferenceName;
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else if (ReferenceType ==
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LLVMDisassembler_ReferenceType_Out_Objc_Message)
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(*CommentStream) << "Objc message: " << ReferenceName;
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} else {
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return false;
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}
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} else if (MI.getOpcode() == ARM64::ADRP) {
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if (SymbolLookUp) {
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ReferenceType = LLVMDisassembler_ReferenceType_In_ARM64_ADRP;
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Name = SymbolLookUp(DisInfo, insn, &ReferenceType, Address,
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&ReferenceName);
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(*CommentStream) << format("0x%llx",
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0xfffffffffffff000LL & (Address + Value));
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} else {
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return false;
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}
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} else if (MI.getOpcode() == ARM64::ADDXri ||
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MI.getOpcode() == ARM64::LDRXui ||
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MI.getOpcode() == ARM64::LDRXl || MI.getOpcode() == ARM64::ADR) {
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if (SymbolLookUp) {
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if (MI.getOpcode() == ARM64::ADDXri)
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ReferenceType = LLVMDisassembler_ReferenceType_In_ARM64_ADDXri;
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else if (MI.getOpcode() == ARM64::LDRXui)
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ReferenceType = LLVMDisassembler_ReferenceType_In_ARM64_LDRXui;
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if (MI.getOpcode() == ARM64::LDRXl) {
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ReferenceType = LLVMDisassembler_ReferenceType_In_ARM64_LDRXl;
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Name = SymbolLookUp(DisInfo, Address + Value, &ReferenceType, Address,
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&ReferenceName);
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} else if (MI.getOpcode() == ARM64::ADR) {
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ReferenceType = LLVMDisassembler_ReferenceType_In_ARM64_ADR;
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Name = SymbolLookUp(DisInfo, Address + Value, &ReferenceType, Address,
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&ReferenceName);
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} else {
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Name = SymbolLookUp(DisInfo, insn, &ReferenceType, Address,
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&ReferenceName);
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}
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if (ReferenceType == LLVMDisassembler_ReferenceType_Out_LitPool_SymAddr)
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(*CommentStream) << "literal pool symbol address: " << ReferenceName;
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else if (ReferenceType ==
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LLVMDisassembler_ReferenceType_Out_LitPool_CstrAddr)
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(*CommentStream) << "literal pool for: \"" << ReferenceName << "\"";
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else if (ReferenceType ==
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LLVMDisassembler_ReferenceType_Out_Objc_CFString_Ref)
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(*CommentStream) << "Objc cfstring ref: @\"" << ReferenceName << "\"";
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else if (ReferenceType ==
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LLVMDisassembler_ReferenceType_Out_Objc_Message)
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(*CommentStream) << "Objc message: " << ReferenceName;
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else if (ReferenceType ==
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LLVMDisassembler_ReferenceType_Out_Objc_Message_Ref)
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(*CommentStream) << "Objc message ref: " << ReferenceName;
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else if (ReferenceType ==
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LLVMDisassembler_ReferenceType_Out_Objc_Selector_Ref)
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(*CommentStream) << "Objc selector ref: " << ReferenceName;
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else if (ReferenceType ==
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LLVMDisassembler_ReferenceType_Out_Objc_Class_Ref)
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(*CommentStream) << "Objc class ref: " << ReferenceName;
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// For these instructions, the SymbolLookUp() above is just to get the
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// ReferenceType and ReferenceName. We want to make sure not to
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// fall through so we don't build an MCExpr to leave the disassembly
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// of the immediate values of these instructions to the InstPrinter.
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return false;
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} else {
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return false;
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}
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} else {
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return false;
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}
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}
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MCContext *Ctx = getMCContext();
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const MCExpr *Add = NULL;
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if (SymbolicOp.AddSymbol.Present) {
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if (SymbolicOp.AddSymbol.Name) {
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StringRef Name(SymbolicOp.AddSymbol.Name);
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MCSymbol *Sym = Ctx->GetOrCreateSymbol(Name);
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MCSymbolRefExpr::VariantKind Variant = getVariant(SymbolicOp.VariantKind);
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if (Variant != MCSymbolRefExpr::VK_None)
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Add = MCSymbolRefExpr::Create(Sym, Variant, *Ctx);
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else
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Add = MCSymbolRefExpr::Create(Sym, *Ctx);
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} else {
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Add = MCConstantExpr::Create(SymbolicOp.AddSymbol.Value, *Ctx);
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}
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}
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const MCExpr *Sub = NULL;
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if (SymbolicOp.SubtractSymbol.Present) {
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if (SymbolicOp.SubtractSymbol.Name) {
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StringRef Name(SymbolicOp.SubtractSymbol.Name);
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MCSymbol *Sym = Ctx->GetOrCreateSymbol(Name);
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Sub = MCSymbolRefExpr::Create(Sym, *Ctx);
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} else {
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Sub = MCConstantExpr::Create(SymbolicOp.SubtractSymbol.Value, *Ctx);
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}
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}
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const MCExpr *Off = NULL;
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if (SymbolicOp.Value != 0)
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Off = MCConstantExpr::Create(SymbolicOp.Value, *Ctx);
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const MCExpr *Expr;
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if (Sub) {
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const MCExpr *LHS;
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if (Add)
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LHS = MCBinaryExpr::CreateSub(Add, Sub, *Ctx);
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else
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LHS = MCUnaryExpr::CreateMinus(Sub, *Ctx);
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if (Off != 0)
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Expr = MCBinaryExpr::CreateAdd(LHS, Off, *Ctx);
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else
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Expr = LHS;
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} else if (Add) {
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if (Off != 0)
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Expr = MCBinaryExpr::CreateAdd(Add, Off, *Ctx);
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else
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Expr = Add;
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} else {
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if (Off != 0)
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Expr = Off;
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else
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Expr = MCConstantExpr::Create(0, *Ctx);
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}
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MI.addOperand(MCOperand::CreateExpr(Expr));
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return true;
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}
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extern "C" void LLVMInitializeARM64Disassembler() {
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TargetRegistry::RegisterMCDisassembler(TheARM64Target,
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createARM64Disassembler);
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}
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static const unsigned FPR128DecoderTable[] = {
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ARM64::Q0, ARM64::Q1, ARM64::Q2, ARM64::Q3, ARM64::Q4, ARM64::Q5,
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ARM64::Q6, ARM64::Q7, ARM64::Q8, ARM64::Q9, ARM64::Q10, ARM64::Q11,
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ARM64::Q12, ARM64::Q13, ARM64::Q14, ARM64::Q15, ARM64::Q16, ARM64::Q17,
|
|
ARM64::Q18, ARM64::Q19, ARM64::Q20, ARM64::Q21, ARM64::Q22, ARM64::Q23,
|
|
ARM64::Q24, ARM64::Q25, ARM64::Q26, ARM64::Q27, ARM64::Q28, ARM64::Q29,
|
|
ARM64::Q30, ARM64::Q31
|
|
};
|
|
|
|
static DecodeStatus DecodeFPR128RegisterClass(MCInst &Inst, unsigned RegNo,
|
|
uint64_t Addr,
|
|
const void *Decoder) {
|
|
if (RegNo > 31)
|
|
return Fail;
|
|
|
|
unsigned Register = FPR128DecoderTable[RegNo];
|
|
Inst.addOperand(MCOperand::CreateReg(Register));
|
|
return Success;
|
|
}
|
|
|
|
static DecodeStatus DecodeFPR128_loRegisterClass(MCInst &Inst, unsigned RegNo,
|
|
uint64_t Addr,
|
|
const void *Decoder) {
|
|
if (RegNo > 15)
|
|
return Fail;
|
|
return DecodeFPR128RegisterClass(Inst, RegNo, Addr, Decoder);
|
|
}
|
|
|
|
static const unsigned FPR64DecoderTable[] = {
|
|
ARM64::D0, ARM64::D1, ARM64::D2, ARM64::D3, ARM64::D4, ARM64::D5,
|
|
ARM64::D6, ARM64::D7, ARM64::D8, ARM64::D9, ARM64::D10, ARM64::D11,
|
|
ARM64::D12, ARM64::D13, ARM64::D14, ARM64::D15, ARM64::D16, ARM64::D17,
|
|
ARM64::D18, ARM64::D19, ARM64::D20, ARM64::D21, ARM64::D22, ARM64::D23,
|
|
ARM64::D24, ARM64::D25, ARM64::D26, ARM64::D27, ARM64::D28, ARM64::D29,
|
|
ARM64::D30, ARM64::D31
|
|
};
|
|
|
|
static DecodeStatus DecodeFPR64RegisterClass(MCInst &Inst, unsigned RegNo,
|
|
uint64_t Addr,
|
|
const void *Decoder) {
|
|
if (RegNo > 31)
|
|
return Fail;
|
|
|
|
unsigned Register = FPR64DecoderTable[RegNo];
|
|
Inst.addOperand(MCOperand::CreateReg(Register));
|
|
return Success;
|
|
}
|
|
|
|
static const unsigned FPR32DecoderTable[] = {
|
|
ARM64::S0, ARM64::S1, ARM64::S2, ARM64::S3, ARM64::S4, ARM64::S5,
|
|
ARM64::S6, ARM64::S7, ARM64::S8, ARM64::S9, ARM64::S10, ARM64::S11,
|
|
ARM64::S12, ARM64::S13, ARM64::S14, ARM64::S15, ARM64::S16, ARM64::S17,
|
|
ARM64::S18, ARM64::S19, ARM64::S20, ARM64::S21, ARM64::S22, ARM64::S23,
|
|
ARM64::S24, ARM64::S25, ARM64::S26, ARM64::S27, ARM64::S28, ARM64::S29,
|
|
ARM64::S30, ARM64::S31
|
|
};
|
|
|
|
static DecodeStatus DecodeFPR32RegisterClass(MCInst &Inst, unsigned RegNo,
|
|
uint64_t Addr,
|
|
const void *Decoder) {
|
|
if (RegNo > 31)
|
|
return Fail;
|
|
|
|
unsigned Register = FPR32DecoderTable[RegNo];
|
|
Inst.addOperand(MCOperand::CreateReg(Register));
|
|
return Success;
|
|
}
|
|
|
|
static const unsigned FPR16DecoderTable[] = {
|
|
ARM64::H0, ARM64::H1, ARM64::H2, ARM64::H3, ARM64::H4, ARM64::H5,
|
|
ARM64::H6, ARM64::H7, ARM64::H8, ARM64::H9, ARM64::H10, ARM64::H11,
|
|
ARM64::H12, ARM64::H13, ARM64::H14, ARM64::H15, ARM64::H16, ARM64::H17,
|
|
ARM64::H18, ARM64::H19, ARM64::H20, ARM64::H21, ARM64::H22, ARM64::H23,
|
|
ARM64::H24, ARM64::H25, ARM64::H26, ARM64::H27, ARM64::H28, ARM64::H29,
|
|
ARM64::H30, ARM64::H31
|
|
};
|
|
|
|
static DecodeStatus DecodeFPR16RegisterClass(MCInst &Inst, unsigned RegNo,
|
|
uint64_t Addr,
|
|
const void *Decoder) {
|
|
if (RegNo > 31)
|
|
return Fail;
|
|
|
|
unsigned Register = FPR16DecoderTable[RegNo];
|
|
Inst.addOperand(MCOperand::CreateReg(Register));
|
|
return Success;
|
|
}
|
|
|
|
static const unsigned FPR8DecoderTable[] = {
|
|
ARM64::B0, ARM64::B1, ARM64::B2, ARM64::B3, ARM64::B4, ARM64::B5,
|
|
ARM64::B6, ARM64::B7, ARM64::B8, ARM64::B9, ARM64::B10, ARM64::B11,
|
|
ARM64::B12, ARM64::B13, ARM64::B14, ARM64::B15, ARM64::B16, ARM64::B17,
|
|
ARM64::B18, ARM64::B19, ARM64::B20, ARM64::B21, ARM64::B22, ARM64::B23,
|
|
ARM64::B24, ARM64::B25, ARM64::B26, ARM64::B27, ARM64::B28, ARM64::B29,
|
|
ARM64::B30, ARM64::B31
|
|
};
|
|
|
|
static DecodeStatus DecodeFPR8RegisterClass(MCInst &Inst, unsigned RegNo,
|
|
uint64_t Addr,
|
|
const void *Decoder) {
|
|
if (RegNo > 31)
|
|
return Fail;
|
|
|
|
unsigned Register = FPR8DecoderTable[RegNo];
|
|
Inst.addOperand(MCOperand::CreateReg(Register));
|
|
return Success;
|
|
}
|
|
|
|
static const unsigned GPR64DecoderTable[] = {
|
|
ARM64::X0, ARM64::X1, ARM64::X2, ARM64::X3, ARM64::X4, ARM64::X5,
|
|
ARM64::X6, ARM64::X7, ARM64::X8, ARM64::X9, ARM64::X10, ARM64::X11,
|
|
ARM64::X12, ARM64::X13, ARM64::X14, ARM64::X15, ARM64::X16, ARM64::X17,
|
|
ARM64::X18, ARM64::X19, ARM64::X20, ARM64::X21, ARM64::X22, ARM64::X23,
|
|
ARM64::X24, ARM64::X25, ARM64::X26, ARM64::X27, ARM64::X28, ARM64::FP,
|
|
ARM64::LR, ARM64::XZR
|
|
};
|
|
|
|
static DecodeStatus DecodeGPR64RegisterClass(MCInst &Inst, unsigned RegNo,
|
|
uint64_t Addr,
|
|
const void *Decoder) {
|
|
if (RegNo > 31)
|
|
return Fail;
|
|
|
|
unsigned Register = GPR64DecoderTable[RegNo];
|
|
Inst.addOperand(MCOperand::CreateReg(Register));
|
|
return Success;
|
|
}
|
|
|
|
static DecodeStatus DecodeGPR64spRegisterClass(MCInst &Inst, unsigned RegNo,
|
|
uint64_t Addr,
|
|
const void *Decoder) {
|
|
if (RegNo > 31)
|
|
return Fail;
|
|
unsigned Register = GPR64DecoderTable[RegNo];
|
|
if (Register == ARM64::XZR)
|
|
Register = ARM64::SP;
|
|
Inst.addOperand(MCOperand::CreateReg(Register));
|
|
return Success;
|
|
}
|
|
|
|
static const unsigned GPR32DecoderTable[] = {
|
|
ARM64::W0, ARM64::W1, ARM64::W2, ARM64::W3, ARM64::W4, ARM64::W5,
|
|
ARM64::W6, ARM64::W7, ARM64::W8, ARM64::W9, ARM64::W10, ARM64::W11,
|
|
ARM64::W12, ARM64::W13, ARM64::W14, ARM64::W15, ARM64::W16, ARM64::W17,
|
|
ARM64::W18, ARM64::W19, ARM64::W20, ARM64::W21, ARM64::W22, ARM64::W23,
|
|
ARM64::W24, ARM64::W25, ARM64::W26, ARM64::W27, ARM64::W28, ARM64::W29,
|
|
ARM64::W30, ARM64::WZR
|
|
};
|
|
|
|
static DecodeStatus DecodeGPR32RegisterClass(MCInst &Inst, unsigned RegNo,
|
|
uint64_t Addr,
|
|
const void *Decoder) {
|
|
if (RegNo > 31)
|
|
return Fail;
|
|
|
|
unsigned Register = GPR32DecoderTable[RegNo];
|
|
Inst.addOperand(MCOperand::CreateReg(Register));
|
|
return Success;
|
|
}
|
|
|
|
static DecodeStatus DecodeGPR32spRegisterClass(MCInst &Inst, unsigned RegNo,
|
|
uint64_t Addr,
|
|
const void *Decoder) {
|
|
if (RegNo > 31)
|
|
return Fail;
|
|
|
|
unsigned Register = GPR32DecoderTable[RegNo];
|
|
if (Register == ARM64::WZR)
|
|
Register = ARM64::WSP;
|
|
Inst.addOperand(MCOperand::CreateReg(Register));
|
|
return Success;
|
|
}
|
|
|
|
static const unsigned VectorDecoderTable[] = {
|
|
ARM64::Q0, ARM64::Q1, ARM64::Q2, ARM64::Q3, ARM64::Q4, ARM64::Q5,
|
|
ARM64::Q6, ARM64::Q7, ARM64::Q8, ARM64::Q9, ARM64::Q10, ARM64::Q11,
|
|
ARM64::Q12, ARM64::Q13, ARM64::Q14, ARM64::Q15, ARM64::Q16, ARM64::Q17,
|
|
ARM64::Q18, ARM64::Q19, ARM64::Q20, ARM64::Q21, ARM64::Q22, ARM64::Q23,
|
|
ARM64::Q24, ARM64::Q25, ARM64::Q26, ARM64::Q27, ARM64::Q28, ARM64::Q29,
|
|
ARM64::Q30, ARM64::Q31
|
|
};
|
|
|
|
static DecodeStatus DecodeVectorRegisterClass(MCInst &Inst, unsigned RegNo,
|
|
uint64_t Addr,
|
|
const void *Decoder) {
|
|
if (RegNo > 31)
|
|
return Fail;
|
|
|
|
unsigned Register = VectorDecoderTable[RegNo];
|
|
Inst.addOperand(MCOperand::CreateReg(Register));
|
|
return Success;
|
|
}
|
|
|
|
static const unsigned QQDecoderTable[] = {
|
|
ARM64::Q0_Q1, ARM64::Q1_Q2, ARM64::Q2_Q3, ARM64::Q3_Q4,
|
|
ARM64::Q4_Q5, ARM64::Q5_Q6, ARM64::Q6_Q7, ARM64::Q7_Q8,
|
|
ARM64::Q8_Q9, ARM64::Q9_Q10, ARM64::Q10_Q11, ARM64::Q11_Q12,
|
|
ARM64::Q12_Q13, ARM64::Q13_Q14, ARM64::Q14_Q15, ARM64::Q15_Q16,
|
|
ARM64::Q16_Q17, ARM64::Q17_Q18, ARM64::Q18_Q19, ARM64::Q19_Q20,
|
|
ARM64::Q20_Q21, ARM64::Q21_Q22, ARM64::Q22_Q23, ARM64::Q23_Q24,
|
|
ARM64::Q24_Q25, ARM64::Q25_Q26, ARM64::Q26_Q27, ARM64::Q27_Q28,
|
|
ARM64::Q28_Q29, ARM64::Q29_Q30, ARM64::Q30_Q31, ARM64::Q31_Q0
|
|
};
|
|
|
|
static DecodeStatus DecodeQQRegisterClass(MCInst &Inst, unsigned RegNo,
|
|
uint64_t Addr, const void *Decoder) {
|
|
if (RegNo > 31)
|
|
return Fail;
|
|
unsigned Register = QQDecoderTable[RegNo];
|
|
Inst.addOperand(MCOperand::CreateReg(Register));
|
|
return Success;
|
|
}
|
|
|
|
static const unsigned QQQDecoderTable[] = {
|
|
ARM64::Q0_Q1_Q2, ARM64::Q1_Q2_Q3, ARM64::Q2_Q3_Q4,
|
|
ARM64::Q3_Q4_Q5, ARM64::Q4_Q5_Q6, ARM64::Q5_Q6_Q7,
|
|
ARM64::Q6_Q7_Q8, ARM64::Q7_Q8_Q9, ARM64::Q8_Q9_Q10,
|
|
ARM64::Q9_Q10_Q11, ARM64::Q10_Q11_Q12, ARM64::Q11_Q12_Q13,
|
|
ARM64::Q12_Q13_Q14, ARM64::Q13_Q14_Q15, ARM64::Q14_Q15_Q16,
|
|
ARM64::Q15_Q16_Q17, ARM64::Q16_Q17_Q18, ARM64::Q17_Q18_Q19,
|
|
ARM64::Q18_Q19_Q20, ARM64::Q19_Q20_Q21, ARM64::Q20_Q21_Q22,
|
|
ARM64::Q21_Q22_Q23, ARM64::Q22_Q23_Q24, ARM64::Q23_Q24_Q25,
|
|
ARM64::Q24_Q25_Q26, ARM64::Q25_Q26_Q27, ARM64::Q26_Q27_Q28,
|
|
ARM64::Q27_Q28_Q29, ARM64::Q28_Q29_Q30, ARM64::Q29_Q30_Q31,
|
|
ARM64::Q30_Q31_Q0, ARM64::Q31_Q0_Q1
|
|
};
|
|
|
|
static DecodeStatus DecodeQQQRegisterClass(MCInst &Inst, unsigned RegNo,
|
|
uint64_t Addr, const void *Decoder) {
|
|
if (RegNo > 31)
|
|
return Fail;
|
|
unsigned Register = QQQDecoderTable[RegNo];
|
|
Inst.addOperand(MCOperand::CreateReg(Register));
|
|
return Success;
|
|
}
|
|
|
|
static const unsigned QQQQDecoderTable[] = {
|
|
ARM64::Q0_Q1_Q2_Q3, ARM64::Q1_Q2_Q3_Q4, ARM64::Q2_Q3_Q4_Q5,
|
|
ARM64::Q3_Q4_Q5_Q6, ARM64::Q4_Q5_Q6_Q7, ARM64::Q5_Q6_Q7_Q8,
|
|
ARM64::Q6_Q7_Q8_Q9, ARM64::Q7_Q8_Q9_Q10, ARM64::Q8_Q9_Q10_Q11,
|
|
ARM64::Q9_Q10_Q11_Q12, ARM64::Q10_Q11_Q12_Q13, ARM64::Q11_Q12_Q13_Q14,
|
|
ARM64::Q12_Q13_Q14_Q15, ARM64::Q13_Q14_Q15_Q16, ARM64::Q14_Q15_Q16_Q17,
|
|
ARM64::Q15_Q16_Q17_Q18, ARM64::Q16_Q17_Q18_Q19, ARM64::Q17_Q18_Q19_Q20,
|
|
ARM64::Q18_Q19_Q20_Q21, ARM64::Q19_Q20_Q21_Q22, ARM64::Q20_Q21_Q22_Q23,
|
|
ARM64::Q21_Q22_Q23_Q24, ARM64::Q22_Q23_Q24_Q25, ARM64::Q23_Q24_Q25_Q26,
|
|
ARM64::Q24_Q25_Q26_Q27, ARM64::Q25_Q26_Q27_Q28, ARM64::Q26_Q27_Q28_Q29,
|
|
ARM64::Q27_Q28_Q29_Q30, ARM64::Q28_Q29_Q30_Q31, ARM64::Q29_Q30_Q31_Q0,
|
|
ARM64::Q30_Q31_Q0_Q1, ARM64::Q31_Q0_Q1_Q2
|
|
};
|
|
|
|
static DecodeStatus DecodeQQQQRegisterClass(MCInst &Inst, unsigned RegNo,
|
|
uint64_t Addr,
|
|
const void *Decoder) {
|
|
if (RegNo > 31)
|
|
return Fail;
|
|
unsigned Register = QQQQDecoderTable[RegNo];
|
|
Inst.addOperand(MCOperand::CreateReg(Register));
|
|
return Success;
|
|
}
|
|
|
|
static const unsigned DDDecoderTable[] = {
|
|
ARM64::D0_D1, ARM64::D1_D2, ARM64::D2_D3, ARM64::D3_D4,
|
|
ARM64::D4_D5, ARM64::D5_D6, ARM64::D6_D7, ARM64::D7_D8,
|
|
ARM64::D8_D9, ARM64::D9_D10, ARM64::D10_D11, ARM64::D11_D12,
|
|
ARM64::D12_D13, ARM64::D13_D14, ARM64::D14_D15, ARM64::D15_D16,
|
|
ARM64::D16_D17, ARM64::D17_D18, ARM64::D18_D19, ARM64::D19_D20,
|
|
ARM64::D20_D21, ARM64::D21_D22, ARM64::D22_D23, ARM64::D23_D24,
|
|
ARM64::D24_D25, ARM64::D25_D26, ARM64::D26_D27, ARM64::D27_D28,
|
|
ARM64::D28_D29, ARM64::D29_D30, ARM64::D30_D31, ARM64::D31_D0
|
|
};
|
|
|
|
static DecodeStatus DecodeDDRegisterClass(MCInst &Inst, unsigned RegNo,
|
|
uint64_t Addr, const void *Decoder) {
|
|
if (RegNo > 31)
|
|
return Fail;
|
|
unsigned Register = DDDecoderTable[RegNo];
|
|
Inst.addOperand(MCOperand::CreateReg(Register));
|
|
return Success;
|
|
}
|
|
|
|
static const unsigned DDDDecoderTable[] = {
|
|
ARM64::D0_D1_D2, ARM64::D1_D2_D3, ARM64::D2_D3_D4,
|
|
ARM64::D3_D4_D5, ARM64::D4_D5_D6, ARM64::D5_D6_D7,
|
|
ARM64::D6_D7_D8, ARM64::D7_D8_D9, ARM64::D8_D9_D10,
|
|
ARM64::D9_D10_D11, ARM64::D10_D11_D12, ARM64::D11_D12_D13,
|
|
ARM64::D12_D13_D14, ARM64::D13_D14_D15, ARM64::D14_D15_D16,
|
|
ARM64::D15_D16_D17, ARM64::D16_D17_D18, ARM64::D17_D18_D19,
|
|
ARM64::D18_D19_D20, ARM64::D19_D20_D21, ARM64::D20_D21_D22,
|
|
ARM64::D21_D22_D23, ARM64::D22_D23_D24, ARM64::D23_D24_D25,
|
|
ARM64::D24_D25_D26, ARM64::D25_D26_D27, ARM64::D26_D27_D28,
|
|
ARM64::D27_D28_D29, ARM64::D28_D29_D30, ARM64::D29_D30_D31,
|
|
ARM64::D30_D31_D0, ARM64::D31_D0_D1
|
|
};
|
|
|
|
static DecodeStatus DecodeDDDRegisterClass(MCInst &Inst, unsigned RegNo,
|
|
uint64_t Addr, const void *Decoder) {
|
|
if (RegNo > 31)
|
|
return Fail;
|
|
unsigned Register = DDDDecoderTable[RegNo];
|
|
Inst.addOperand(MCOperand::CreateReg(Register));
|
|
return Success;
|
|
}
|
|
|
|
static const unsigned DDDDDecoderTable[] = {
|
|
ARM64::D0_D1_D2_D3, ARM64::D1_D2_D3_D4, ARM64::D2_D3_D4_D5,
|
|
ARM64::D3_D4_D5_D6, ARM64::D4_D5_D6_D7, ARM64::D5_D6_D7_D8,
|
|
ARM64::D6_D7_D8_D9, ARM64::D7_D8_D9_D10, ARM64::D8_D9_D10_D11,
|
|
ARM64::D9_D10_D11_D12, ARM64::D10_D11_D12_D13, ARM64::D11_D12_D13_D14,
|
|
ARM64::D12_D13_D14_D15, ARM64::D13_D14_D15_D16, ARM64::D14_D15_D16_D17,
|
|
ARM64::D15_D16_D17_D18, ARM64::D16_D17_D18_D19, ARM64::D17_D18_D19_D20,
|
|
ARM64::D18_D19_D20_D21, ARM64::D19_D20_D21_D22, ARM64::D20_D21_D22_D23,
|
|
ARM64::D21_D22_D23_D24, ARM64::D22_D23_D24_D25, ARM64::D23_D24_D25_D26,
|
|
ARM64::D24_D25_D26_D27, ARM64::D25_D26_D27_D28, ARM64::D26_D27_D28_D29,
|
|
ARM64::D27_D28_D29_D30, ARM64::D28_D29_D30_D31, ARM64::D29_D30_D31_D0,
|
|
ARM64::D30_D31_D0_D1, ARM64::D31_D0_D1_D2
|
|
};
|
|
|
|
static DecodeStatus DecodeDDDDRegisterClass(MCInst &Inst, unsigned RegNo,
|
|
uint64_t Addr,
|
|
const void *Decoder) {
|
|
if (RegNo > 31)
|
|
return Fail;
|
|
unsigned Register = DDDDDecoderTable[RegNo];
|
|
Inst.addOperand(MCOperand::CreateReg(Register));
|
|
return Success;
|
|
}
|
|
|
|
static DecodeStatus DecodeFixedPointScaleImm(llvm::MCInst &Inst, unsigned Imm,
|
|
uint64_t Addr,
|
|
const void *Decoder) {
|
|
Inst.addOperand(MCOperand::CreateImm(64 - Imm));
|
|
return Success;
|
|
}
|
|
|
|
static DecodeStatus DecodeCondBranchTarget(llvm::MCInst &Inst, unsigned Imm,
|
|
uint64_t Addr, const void *Decoder) {
|
|
int64_t ImmVal = Imm;
|
|
const ARM64Disassembler *Dis =
|
|
static_cast<const ARM64Disassembler *>(Decoder);
|
|
|
|
// Sign-extend 19-bit immediate.
|
|
if (ImmVal & (1 << (19 - 1)))
|
|
ImmVal |= ~((1LL << 19) - 1);
|
|
|
|
if (!Dis->tryAddingSymbolicOperand(Addr, ImmVal << 2,
|
|
Inst.getOpcode() != ARM64::LDRXl, 4, Inst))
|
|
Inst.addOperand(MCOperand::CreateImm(ImmVal));
|
|
return Success;
|
|
}
|
|
|
|
static DecodeStatus DecodeSystemRegister(llvm::MCInst &Inst, unsigned Imm,
|
|
uint64_t Address,
|
|
const void *Decoder) {
|
|
Inst.addOperand(MCOperand::CreateImm(Imm | 0x8000));
|
|
return Success;
|
|
}
|
|
|
|
static DecodeStatus DecodeVecShiftRImm(llvm::MCInst &Inst, unsigned Imm,
|
|
unsigned Add) {
|
|
Inst.addOperand(MCOperand::CreateImm(Add - Imm));
|
|
return Success;
|
|
}
|
|
|
|
static DecodeStatus DecodeVecShiftLImm(llvm::MCInst &Inst, unsigned Imm,
|
|
unsigned Add) {
|
|
Inst.addOperand(MCOperand::CreateImm((Imm + Add) & (Add - 1)));
|
|
return Success;
|
|
}
|
|
|
|
static DecodeStatus DecodeVecShiftR64Imm(llvm::MCInst &Inst, unsigned Imm,
|
|
uint64_t Addr, const void *Decoder) {
|
|
return DecodeVecShiftRImm(Inst, Imm, 64);
|
|
}
|
|
|
|
static DecodeStatus DecodeVecShiftR64ImmNarrow(llvm::MCInst &Inst, unsigned Imm,
|
|
uint64_t Addr,
|
|
const void *Decoder) {
|
|
return DecodeVecShiftRImm(Inst, Imm | 0x20, 64);
|
|
}
|
|
|
|
static DecodeStatus DecodeVecShiftR32Imm(llvm::MCInst &Inst, unsigned Imm,
|
|
uint64_t Addr, const void *Decoder) {
|
|
return DecodeVecShiftRImm(Inst, Imm, 32);
|
|
}
|
|
|
|
static DecodeStatus DecodeVecShiftR32ImmNarrow(llvm::MCInst &Inst, unsigned Imm,
|
|
uint64_t Addr,
|
|
const void *Decoder) {
|
|
return DecodeVecShiftRImm(Inst, Imm | 0x10, 32);
|
|
}
|
|
|
|
static DecodeStatus DecodeVecShiftR16Imm(llvm::MCInst &Inst, unsigned Imm,
|
|
uint64_t Addr, const void *Decoder) {
|
|
return DecodeVecShiftRImm(Inst, Imm, 16);
|
|
}
|
|
|
|
static DecodeStatus DecodeVecShiftR16ImmNarrow(llvm::MCInst &Inst, unsigned Imm,
|
|
uint64_t Addr,
|
|
const void *Decoder) {
|
|
return DecodeVecShiftRImm(Inst, Imm | 0x8, 16);
|
|
}
|
|
|
|
static DecodeStatus DecodeVecShiftR8Imm(llvm::MCInst &Inst, unsigned Imm,
|
|
uint64_t Addr, const void *Decoder) {
|
|
return DecodeVecShiftRImm(Inst, Imm, 8);
|
|
}
|
|
|
|
static DecodeStatus DecodeVecShiftL64Imm(llvm::MCInst &Inst, unsigned Imm,
|
|
uint64_t Addr, const void *Decoder) {
|
|
return DecodeVecShiftLImm(Inst, Imm, 64);
|
|
}
|
|
|
|
static DecodeStatus DecodeVecShiftL32Imm(llvm::MCInst &Inst, unsigned Imm,
|
|
uint64_t Addr, const void *Decoder) {
|
|
return DecodeVecShiftLImm(Inst, Imm, 32);
|
|
}
|
|
|
|
static DecodeStatus DecodeVecShiftL16Imm(llvm::MCInst &Inst, unsigned Imm,
|
|
uint64_t Addr, const void *Decoder) {
|
|
return DecodeVecShiftLImm(Inst, Imm, 16);
|
|
}
|
|
|
|
static DecodeStatus DecodeVecShiftL8Imm(llvm::MCInst &Inst, unsigned Imm,
|
|
uint64_t Addr, const void *Decoder) {
|
|
return DecodeVecShiftLImm(Inst, Imm, 8);
|
|
}
|
|
|
|
static DecodeStatus DecodeThreeAddrSRegInstruction(llvm::MCInst &Inst,
|
|
uint32_t insn, uint64_t Addr,
|
|
const void *Decoder) {
|
|
unsigned Rd = fieldFromInstruction(insn, 0, 5);
|
|
unsigned Rn = fieldFromInstruction(insn, 5, 5);
|
|
unsigned Rm = fieldFromInstruction(insn, 16, 5);
|
|
unsigned shiftHi = fieldFromInstruction(insn, 22, 2);
|
|
unsigned shiftLo = fieldFromInstruction(insn, 10, 6);
|
|
unsigned shift = (shiftHi << 6) | shiftLo;
|
|
switch (Inst.getOpcode()) {
|
|
default:
|
|
return Fail;
|
|
case ARM64::ANDWrs:
|
|
case ARM64::ANDSWrs:
|
|
case ARM64::BICWrs:
|
|
case ARM64::BICSWrs:
|
|
case ARM64::ORRWrs:
|
|
case ARM64::ORNWrs:
|
|
case ARM64::EORWrs:
|
|
case ARM64::EONWrs:
|
|
case ARM64::ADDWrs:
|
|
case ARM64::ADDSWrs:
|
|
case ARM64::SUBWrs:
|
|
case ARM64::SUBSWrs: {
|
|
DecodeGPR32RegisterClass(Inst, Rd, Addr, Decoder);
|
|
DecodeGPR32RegisterClass(Inst, Rn, Addr, Decoder);
|
|
DecodeGPR32RegisterClass(Inst, Rm, Addr, Decoder);
|
|
break;
|
|
}
|
|
case ARM64::ANDXrs:
|
|
case ARM64::ANDSXrs:
|
|
case ARM64::BICXrs:
|
|
case ARM64::BICSXrs:
|
|
case ARM64::ORRXrs:
|
|
case ARM64::ORNXrs:
|
|
case ARM64::EORXrs:
|
|
case ARM64::EONXrs:
|
|
case ARM64::ADDXrs:
|
|
case ARM64::ADDSXrs:
|
|
case ARM64::SUBXrs:
|
|
case ARM64::SUBSXrs:
|
|
DecodeGPR64RegisterClass(Inst, Rd, Addr, Decoder);
|
|
DecodeGPR64RegisterClass(Inst, Rn, Addr, Decoder);
|
|
DecodeGPR64RegisterClass(Inst, Rm, Addr, Decoder);
|
|
break;
|
|
}
|
|
|
|
Inst.addOperand(MCOperand::CreateImm(shift));
|
|
return Success;
|
|
}
|
|
|
|
static DecodeStatus DecodeMoveImmInstruction(llvm::MCInst &Inst, uint32_t insn,
|
|
uint64_t Addr,
|
|
const void *Decoder) {
|
|
unsigned Rd = fieldFromInstruction(insn, 0, 5);
|
|
unsigned imm = fieldFromInstruction(insn, 5, 16);
|
|
unsigned shift = fieldFromInstruction(insn, 21, 2);
|
|
shift <<= 4;
|
|
switch (Inst.getOpcode()) {
|
|
default:
|
|
return Fail;
|
|
case ARM64::MOVZWi:
|
|
case ARM64::MOVNWi:
|
|
case ARM64::MOVKWi:
|
|
DecodeGPR32RegisterClass(Inst, Rd, Addr, Decoder);
|
|
break;
|
|
case ARM64::MOVZXi:
|
|
case ARM64::MOVNXi:
|
|
case ARM64::MOVKXi:
|
|
DecodeGPR64RegisterClass(Inst, Rd, Addr, Decoder);
|
|
break;
|
|
}
|
|
|
|
if (Inst.getOpcode() == ARM64::MOVKWi || Inst.getOpcode() == ARM64::MOVKXi)
|
|
Inst.addOperand(Inst.getOperand(0));
|
|
|
|
Inst.addOperand(MCOperand::CreateImm(imm));
|
|
Inst.addOperand(MCOperand::CreateImm(shift));
|
|
return Success;
|
|
}
|
|
|
|
static DecodeStatus DecodeUnsignedLdStInstruction(llvm::MCInst &Inst,
|
|
uint32_t insn, uint64_t Addr,
|
|
const void *Decoder) {
|
|
unsigned Rt = fieldFromInstruction(insn, 0, 5);
|
|
unsigned Rn = fieldFromInstruction(insn, 5, 5);
|
|
unsigned offset = fieldFromInstruction(insn, 10, 12);
|
|
const ARM64Disassembler *Dis =
|
|
static_cast<const ARM64Disassembler *>(Decoder);
|
|
|
|
switch (Inst.getOpcode()) {
|
|
default:
|
|
return Fail;
|
|
case ARM64::PRFMui:
|
|
// Rt is an immediate in prefetch.
|
|
Inst.addOperand(MCOperand::CreateImm(Rt));
|
|
break;
|
|
case ARM64::STRBBui:
|
|
case ARM64::LDRBBui:
|
|
case ARM64::LDRSBWui:
|
|
case ARM64::STRHHui:
|
|
case ARM64::LDRHHui:
|
|
case ARM64::LDRSHWui:
|
|
case ARM64::STRWui:
|
|
case ARM64::LDRWui:
|
|
DecodeGPR32RegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
case ARM64::LDRSBXui:
|
|
case ARM64::LDRSHXui:
|
|
case ARM64::LDRSWui:
|
|
case ARM64::STRXui:
|
|
case ARM64::LDRXui:
|
|
DecodeGPR64RegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
case ARM64::LDRQui:
|
|
case ARM64::STRQui:
|
|
DecodeFPR128RegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
case ARM64::LDRDui:
|
|
case ARM64::STRDui:
|
|
DecodeFPR64RegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
case ARM64::LDRSui:
|
|
case ARM64::STRSui:
|
|
DecodeFPR32RegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
case ARM64::LDRHui:
|
|
case ARM64::STRHui:
|
|
DecodeFPR16RegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
case ARM64::LDRBui:
|
|
case ARM64::STRBui:
|
|
DecodeFPR8RegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
}
|
|
|
|
DecodeGPR64spRegisterClass(Inst, Rn, Addr, Decoder);
|
|
if (!Dis->tryAddingSymbolicOperand(Addr, offset, Fail, 4, Inst, insn))
|
|
Inst.addOperand(MCOperand::CreateImm(offset));
|
|
return Success;
|
|
}
|
|
|
|
static DecodeStatus DecodeSignedLdStInstruction(llvm::MCInst &Inst,
|
|
uint32_t insn, uint64_t Addr,
|
|
const void *Decoder) {
|
|
unsigned Rt = fieldFromInstruction(insn, 0, 5);
|
|
unsigned Rn = fieldFromInstruction(insn, 5, 5);
|
|
int64_t offset = fieldFromInstruction(insn, 12, 9);
|
|
|
|
// offset is a 9-bit signed immediate, so sign extend it to
|
|
// fill the unsigned.
|
|
if (offset & (1 << (9 - 1)))
|
|
offset |= ~((1LL << 9) - 1);
|
|
|
|
switch (Inst.getOpcode()) {
|
|
default:
|
|
return Fail;
|
|
case ARM64::PRFUMi:
|
|
// Rt is an immediate in prefetch.
|
|
Inst.addOperand(MCOperand::CreateImm(Rt));
|
|
break;
|
|
case ARM64::STURBBi:
|
|
case ARM64::LDURBBi:
|
|
case ARM64::LDURSBWi:
|
|
case ARM64::STURHHi:
|
|
case ARM64::LDURHHi:
|
|
case ARM64::LDURSHWi:
|
|
case ARM64::STURWi:
|
|
case ARM64::LDURWi:
|
|
case ARM64::LDTRSBWi:
|
|
case ARM64::LDTRSHWi:
|
|
case ARM64::STTRWi:
|
|
case ARM64::LDTRWi:
|
|
case ARM64::STTRHi:
|
|
case ARM64::LDTRHi:
|
|
case ARM64::LDTRBi:
|
|
case ARM64::STTRBi:
|
|
case ARM64::LDRSBWpre:
|
|
case ARM64::LDRSHWpre:
|
|
case ARM64::STRBBpre:
|
|
case ARM64::LDRBBpre:
|
|
case ARM64::STRHHpre:
|
|
case ARM64::LDRHHpre:
|
|
case ARM64::STRWpre:
|
|
case ARM64::LDRWpre:
|
|
case ARM64::LDRSBWpost:
|
|
case ARM64::LDRSHWpost:
|
|
case ARM64::STRBBpost:
|
|
case ARM64::LDRBBpost:
|
|
case ARM64::STRHHpost:
|
|
case ARM64::LDRHHpost:
|
|
case ARM64::STRWpost:
|
|
case ARM64::LDRWpost:
|
|
DecodeGPR32RegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
case ARM64::LDURSBXi:
|
|
case ARM64::LDURSHXi:
|
|
case ARM64::LDURSWi:
|
|
case ARM64::STURXi:
|
|
case ARM64::LDURXi:
|
|
case ARM64::LDTRSBXi:
|
|
case ARM64::LDTRSHXi:
|
|
case ARM64::LDTRSWi:
|
|
case ARM64::STTRXi:
|
|
case ARM64::LDTRXi:
|
|
case ARM64::LDRSBXpre:
|
|
case ARM64::LDRSHXpre:
|
|
case ARM64::STRXpre:
|
|
case ARM64::LDRSWpre:
|
|
case ARM64::LDRXpre:
|
|
case ARM64::LDRSBXpost:
|
|
case ARM64::LDRSHXpost:
|
|
case ARM64::STRXpost:
|
|
case ARM64::LDRSWpost:
|
|
case ARM64::LDRXpost:
|
|
DecodeGPR64RegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
case ARM64::LDURQi:
|
|
case ARM64::STURQi:
|
|
case ARM64::LDRQpre:
|
|
case ARM64::STRQpre:
|
|
case ARM64::LDRQpost:
|
|
case ARM64::STRQpost:
|
|
DecodeFPR128RegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
case ARM64::LDURDi:
|
|
case ARM64::STURDi:
|
|
case ARM64::LDRDpre:
|
|
case ARM64::STRDpre:
|
|
case ARM64::LDRDpost:
|
|
case ARM64::STRDpost:
|
|
DecodeFPR64RegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
case ARM64::LDURSi:
|
|
case ARM64::STURSi:
|
|
case ARM64::LDRSpre:
|
|
case ARM64::STRSpre:
|
|
case ARM64::LDRSpost:
|
|
case ARM64::STRSpost:
|
|
DecodeFPR32RegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
case ARM64::LDURHi:
|
|
case ARM64::STURHi:
|
|
case ARM64::LDRHpre:
|
|
case ARM64::STRHpre:
|
|
case ARM64::LDRHpost:
|
|
case ARM64::STRHpost:
|
|
DecodeFPR16RegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
case ARM64::LDURBi:
|
|
case ARM64::STURBi:
|
|
case ARM64::LDRBpre:
|
|
case ARM64::STRBpre:
|
|
case ARM64::LDRBpost:
|
|
case ARM64::STRBpost:
|
|
DecodeFPR8RegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
}
|
|
|
|
DecodeGPR64spRegisterClass(Inst, Rn, Addr, Decoder);
|
|
Inst.addOperand(MCOperand::CreateImm(offset));
|
|
return Success;
|
|
}
|
|
|
|
static DecodeStatus DecodeExclusiveLdStInstruction(llvm::MCInst &Inst,
|
|
uint32_t insn, uint64_t Addr,
|
|
const void *Decoder) {
|
|
unsigned Rt = fieldFromInstruction(insn, 0, 5);
|
|
unsigned Rn = fieldFromInstruction(insn, 5, 5);
|
|
unsigned Rt2 = fieldFromInstruction(insn, 10, 5);
|
|
unsigned Rs = fieldFromInstruction(insn, 16, 5);
|
|
|
|
switch (Inst.getOpcode()) {
|
|
default:
|
|
return Fail;
|
|
case ARM64::STLXRW:
|
|
case ARM64::STLXRB:
|
|
case ARM64::STLXRH:
|
|
case ARM64::STXRW:
|
|
case ARM64::STXRB:
|
|
case ARM64::STXRH:
|
|
DecodeGPR32RegisterClass(Inst, Rs, Addr, Decoder);
|
|
// FALLTHROUGH
|
|
case ARM64::LDARW:
|
|
case ARM64::LDARB:
|
|
case ARM64::LDARH:
|
|
case ARM64::LDAXRW:
|
|
case ARM64::LDAXRB:
|
|
case ARM64::LDAXRH:
|
|
case ARM64::LDXRW:
|
|
case ARM64::LDXRB:
|
|
case ARM64::LDXRH:
|
|
case ARM64::STLRW:
|
|
case ARM64::STLRB:
|
|
case ARM64::STLRH:
|
|
DecodeGPR32RegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
case ARM64::STLXRX:
|
|
case ARM64::STXRX:
|
|
DecodeGPR32RegisterClass(Inst, Rs, Addr, Decoder);
|
|
// FALLTHROUGH
|
|
case ARM64::LDARX:
|
|
case ARM64::LDAXRX:
|
|
case ARM64::LDXRX:
|
|
case ARM64::STLRX:
|
|
DecodeGPR64RegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
case ARM64::STLXPW:
|
|
case ARM64::STXPW:
|
|
DecodeGPR32RegisterClass(Inst, Rs, Addr, Decoder);
|
|
// FALLTHROUGH
|
|
case ARM64::LDAXPW:
|
|
case ARM64::LDXPW:
|
|
DecodeGPR32RegisterClass(Inst, Rt, Addr, Decoder);
|
|
DecodeGPR32RegisterClass(Inst, Rt2, Addr, Decoder);
|
|
break;
|
|
case ARM64::STLXPX:
|
|
case ARM64::STXPX:
|
|
DecodeGPR32RegisterClass(Inst, Rs, Addr, Decoder);
|
|
// FALLTHROUGH
|
|
case ARM64::LDAXPX:
|
|
case ARM64::LDXPX:
|
|
DecodeGPR64RegisterClass(Inst, Rt, Addr, Decoder);
|
|
DecodeGPR64RegisterClass(Inst, Rt2, Addr, Decoder);
|
|
break;
|
|
}
|
|
|
|
DecodeGPR64spRegisterClass(Inst, Rn, Addr, Decoder);
|
|
return Success;
|
|
}
|
|
|
|
static DecodeStatus DecodePairLdStInstruction(llvm::MCInst &Inst, uint32_t insn,
|
|
uint64_t Addr,
|
|
const void *Decoder) {
|
|
unsigned Rt = fieldFromInstruction(insn, 0, 5);
|
|
unsigned Rn = fieldFromInstruction(insn, 5, 5);
|
|
unsigned Rt2 = fieldFromInstruction(insn, 10, 5);
|
|
int64_t offset = fieldFromInstruction(insn, 15, 7);
|
|
|
|
// offset is a 7-bit signed immediate, so sign extend it to
|
|
// fill the unsigned.
|
|
if (offset & (1 << (7 - 1)))
|
|
offset |= ~((1LL << 7) - 1);
|
|
|
|
switch (Inst.getOpcode()) {
|
|
default:
|
|
return Fail;
|
|
case ARM64::LDNPXi:
|
|
case ARM64::STNPXi:
|
|
case ARM64::LDPXpost:
|
|
case ARM64::STPXpost:
|
|
case ARM64::LDPSWpost:
|
|
case ARM64::LDPXi:
|
|
case ARM64::STPXi:
|
|
case ARM64::LDPSWi:
|
|
case ARM64::LDPXpre:
|
|
case ARM64::STPXpre:
|
|
case ARM64::LDPSWpre:
|
|
DecodeGPR64RegisterClass(Inst, Rt, Addr, Decoder);
|
|
DecodeGPR64RegisterClass(Inst, Rt2, Addr, Decoder);
|
|
break;
|
|
case ARM64::LDNPWi:
|
|
case ARM64::STNPWi:
|
|
case ARM64::LDPWpost:
|
|
case ARM64::STPWpost:
|
|
case ARM64::LDPWi:
|
|
case ARM64::STPWi:
|
|
case ARM64::LDPWpre:
|
|
case ARM64::STPWpre:
|
|
DecodeGPR32RegisterClass(Inst, Rt, Addr, Decoder);
|
|
DecodeGPR32RegisterClass(Inst, Rt2, Addr, Decoder);
|
|
break;
|
|
case ARM64::LDNPQi:
|
|
case ARM64::STNPQi:
|
|
case ARM64::LDPQpost:
|
|
case ARM64::STPQpost:
|
|
case ARM64::LDPQi:
|
|
case ARM64::STPQi:
|
|
case ARM64::LDPQpre:
|
|
case ARM64::STPQpre:
|
|
DecodeFPR128RegisterClass(Inst, Rt, Addr, Decoder);
|
|
DecodeFPR128RegisterClass(Inst, Rt2, Addr, Decoder);
|
|
break;
|
|
case ARM64::LDNPDi:
|
|
case ARM64::STNPDi:
|
|
case ARM64::LDPDpost:
|
|
case ARM64::STPDpost:
|
|
case ARM64::LDPDi:
|
|
case ARM64::STPDi:
|
|
case ARM64::LDPDpre:
|
|
case ARM64::STPDpre:
|
|
DecodeFPR64RegisterClass(Inst, Rt, Addr, Decoder);
|
|
DecodeFPR64RegisterClass(Inst, Rt2, Addr, Decoder);
|
|
break;
|
|
case ARM64::LDNPSi:
|
|
case ARM64::STNPSi:
|
|
case ARM64::LDPSpost:
|
|
case ARM64::STPSpost:
|
|
case ARM64::LDPSi:
|
|
case ARM64::STPSi:
|
|
case ARM64::LDPSpre:
|
|
case ARM64::STPSpre:
|
|
DecodeFPR32RegisterClass(Inst, Rt, Addr, Decoder);
|
|
DecodeFPR32RegisterClass(Inst, Rt2, Addr, Decoder);
|
|
break;
|
|
}
|
|
|
|
DecodeGPR64spRegisterClass(Inst, Rn, Addr, Decoder);
|
|
Inst.addOperand(MCOperand::CreateImm(offset));
|
|
return Success;
|
|
}
|
|
|
|
static DecodeStatus DecodeRegOffsetLdStInstruction(llvm::MCInst &Inst,
|
|
uint32_t insn, uint64_t Addr,
|
|
const void *Decoder) {
|
|
unsigned Rt = fieldFromInstruction(insn, 0, 5);
|
|
unsigned Rn = fieldFromInstruction(insn, 5, 5);
|
|
unsigned Rm = fieldFromInstruction(insn, 16, 5);
|
|
unsigned extendHi = fieldFromInstruction(insn, 13, 3);
|
|
unsigned extendLo = fieldFromInstruction(insn, 12, 1);
|
|
unsigned extend = 0;
|
|
|
|
switch (Inst.getOpcode()) {
|
|
default:
|
|
return Fail;
|
|
case ARM64::LDRSWro:
|
|
extend = (extendHi << 1) | extendLo;
|
|
DecodeGPR64RegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
case ARM64::LDRXro:
|
|
case ARM64::STRXro:
|
|
extend = (extendHi << 1) | extendLo;
|
|
DecodeGPR64RegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
case ARM64::LDRWro:
|
|
case ARM64::STRWro:
|
|
extend = (extendHi << 1) | extendLo;
|
|
DecodeGPR32RegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
case ARM64::LDRQro:
|
|
case ARM64::STRQro:
|
|
extend = (extendHi << 1) | extendLo;
|
|
DecodeFPR128RegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
case ARM64::LDRDro:
|
|
case ARM64::STRDro:
|
|
extend = (extendHi << 1) | extendLo;
|
|
DecodeFPR64RegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
case ARM64::LDRSro:
|
|
case ARM64::STRSro:
|
|
extend = (extendHi << 1) | extendLo;
|
|
DecodeFPR32RegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
case ARM64::LDRHro:
|
|
extend = (extendHi << 1) | extendLo;
|
|
DecodeFPR16RegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
case ARM64::LDRBro:
|
|
extend = (extendHi << 1) | extendLo;
|
|
DecodeFPR8RegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
case ARM64::LDRBBro:
|
|
case ARM64::STRBBro:
|
|
case ARM64::LDRSBWro:
|
|
extend = (extendHi << 1) | extendLo;
|
|
DecodeGPR32RegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
case ARM64::LDRHHro:
|
|
case ARM64::STRHHro:
|
|
case ARM64::LDRSHWro:
|
|
extend = (extendHi << 1) | extendLo;
|
|
DecodeGPR32RegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
case ARM64::LDRSHXro:
|
|
extend = (extendHi << 1) | extendLo;
|
|
DecodeGPR64RegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
case ARM64::LDRSBXro:
|
|
extend = (extendHi << 1) | extendLo;
|
|
DecodeGPR64RegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
case ARM64::PRFMro:
|
|
extend = (extendHi << 1) | extendLo;
|
|
Inst.addOperand(MCOperand::CreateImm(Rt));
|
|
}
|
|
|
|
DecodeGPR64spRegisterClass(Inst, Rn, Addr, Decoder);
|
|
|
|
if (extendHi == 0x3)
|
|
DecodeGPR64RegisterClass(Inst, Rm, Addr, Decoder);
|
|
else
|
|
DecodeGPR64RegisterClass(Inst, Rm, Addr, Decoder);
|
|
|
|
Inst.addOperand(MCOperand::CreateImm(extend));
|
|
return Success;
|
|
}
|
|
|
|
static DecodeStatus DecodeAddSubERegInstruction(llvm::MCInst &Inst,
|
|
uint32_t insn, uint64_t Addr,
|
|
const void *Decoder) {
|
|
unsigned Rd = fieldFromInstruction(insn, 0, 5);
|
|
unsigned Rn = fieldFromInstruction(insn, 5, 5);
|
|
unsigned Rm = fieldFromInstruction(insn, 16, 5);
|
|
unsigned extend = fieldFromInstruction(insn, 10, 6);
|
|
|
|
switch (Inst.getOpcode()) {
|
|
default:
|
|
return Fail;
|
|
case ARM64::ADDWrx:
|
|
case ARM64::SUBWrx:
|
|
DecodeGPR32spRegisterClass(Inst, Rd, Addr, Decoder);
|
|
DecodeGPR32spRegisterClass(Inst, Rn, Addr, Decoder);
|
|
DecodeGPR32RegisterClass(Inst, Rm, Addr, Decoder);
|
|
break;
|
|
case ARM64::ADDSWrx:
|
|
case ARM64::SUBSWrx:
|
|
DecodeGPR32RegisterClass(Inst, Rd, Addr, Decoder);
|
|
DecodeGPR32spRegisterClass(Inst, Rn, Addr, Decoder);
|
|
DecodeGPR32RegisterClass(Inst, Rm, Addr, Decoder);
|
|
break;
|
|
case ARM64::ADDXrx:
|
|
case ARM64::SUBXrx:
|
|
DecodeGPR64spRegisterClass(Inst, Rd, Addr, Decoder);
|
|
DecodeGPR64spRegisterClass(Inst, Rn, Addr, Decoder);
|
|
DecodeGPR32RegisterClass(Inst, Rm, Addr, Decoder);
|
|
break;
|
|
case ARM64::ADDSXrx:
|
|
case ARM64::SUBSXrx:
|
|
DecodeGPR64RegisterClass(Inst, Rd, Addr, Decoder);
|
|
DecodeGPR64spRegisterClass(Inst, Rn, Addr, Decoder);
|
|
DecodeGPR32RegisterClass(Inst, Rm, Addr, Decoder);
|
|
break;
|
|
case ARM64::ADDXrx64:
|
|
case ARM64::ADDSXrx64:
|
|
case ARM64::SUBXrx64:
|
|
case ARM64::SUBSXrx64:
|
|
DecodeGPR64spRegisterClass(Inst, Rd, Addr, Decoder);
|
|
DecodeGPR64spRegisterClass(Inst, Rn, Addr, Decoder);
|
|
DecodeGPR64RegisterClass(Inst, Rm, Addr, Decoder);
|
|
break;
|
|
}
|
|
|
|
Inst.addOperand(MCOperand::CreateImm(extend));
|
|
return Success;
|
|
}
|
|
|
|
static DecodeStatus DecodeLogicalImmInstruction(llvm::MCInst &Inst,
|
|
uint32_t insn, uint64_t Addr,
|
|
const void *Decoder) {
|
|
unsigned Rd = fieldFromInstruction(insn, 0, 5);
|
|
unsigned Rn = fieldFromInstruction(insn, 5, 5);
|
|
unsigned Datasize = fieldFromInstruction(insn, 31, 1);
|
|
unsigned imm;
|
|
|
|
if (Datasize) {
|
|
DecodeGPR64spRegisterClass(Inst, Rd, Addr, Decoder);
|
|
DecodeGPR64RegisterClass(Inst, Rn, Addr, Decoder);
|
|
imm = fieldFromInstruction(insn, 10, 13);
|
|
if (!ARM64_AM::isValidDecodeLogicalImmediate(imm, 64))
|
|
return Fail;
|
|
} else {
|
|
DecodeGPR32RegisterClass(Inst, Rd, Addr, Decoder);
|
|
DecodeGPR32RegisterClass(Inst, Rn, Addr, Decoder);
|
|
imm = fieldFromInstruction(insn, 10, 12);
|
|
if (!ARM64_AM::isValidDecodeLogicalImmediate(imm, 32))
|
|
return Fail;
|
|
}
|
|
Inst.addOperand(MCOperand::CreateImm(imm));
|
|
return Success;
|
|
}
|
|
|
|
static DecodeStatus DecodeModImmInstruction(llvm::MCInst &Inst, uint32_t insn,
|
|
uint64_t Addr,
|
|
const void *Decoder) {
|
|
unsigned Rd = fieldFromInstruction(insn, 0, 5);
|
|
unsigned cmode = fieldFromInstruction(insn, 12, 4);
|
|
unsigned imm = fieldFromInstruction(insn, 16, 3) << 5;
|
|
imm |= fieldFromInstruction(insn, 5, 5);
|
|
|
|
if (Inst.getOpcode() == ARM64::MOVID)
|
|
DecodeFPR64RegisterClass(Inst, Rd, Addr, Decoder);
|
|
else
|
|
DecodeVectorRegisterClass(Inst, Rd, Addr, Decoder);
|
|
|
|
Inst.addOperand(MCOperand::CreateImm(imm));
|
|
|
|
switch (Inst.getOpcode()) {
|
|
default:
|
|
break;
|
|
case ARM64::MOVIv4i16:
|
|
case ARM64::MOVIv8i16:
|
|
case ARM64::MVNIv4i16:
|
|
case ARM64::MVNIv8i16:
|
|
case ARM64::MOVIv2i32:
|
|
case ARM64::MOVIv4i32:
|
|
case ARM64::MVNIv2i32:
|
|
case ARM64::MVNIv4i32:
|
|
Inst.addOperand(MCOperand::CreateImm((cmode & 6) << 2));
|
|
break;
|
|
case ARM64::MOVIv2s_msl:
|
|
case ARM64::MOVIv4s_msl:
|
|
case ARM64::MVNIv2s_msl:
|
|
case ARM64::MVNIv4s_msl:
|
|
Inst.addOperand(MCOperand::CreateImm(cmode & 1 ? 0x110 : 0x108));
|
|
break;
|
|
}
|
|
|
|
return Success;
|
|
}
|
|
|
|
static DecodeStatus DecodeModImmTiedInstruction(llvm::MCInst &Inst,
|
|
uint32_t insn, uint64_t Addr,
|
|
const void *Decoder) {
|
|
unsigned Rd = fieldFromInstruction(insn, 0, 5);
|
|
unsigned cmode = fieldFromInstruction(insn, 12, 4);
|
|
unsigned imm = fieldFromInstruction(insn, 16, 3) << 5;
|
|
imm |= fieldFromInstruction(insn, 5, 5);
|
|
|
|
// Tied operands added twice.
|
|
DecodeVectorRegisterClass(Inst, Rd, Addr, Decoder);
|
|
DecodeVectorRegisterClass(Inst, Rd, Addr, Decoder);
|
|
|
|
Inst.addOperand(MCOperand::CreateImm(imm));
|
|
Inst.addOperand(MCOperand::CreateImm((cmode & 6) << 2));
|
|
|
|
return Success;
|
|
}
|
|
|
|
static DecodeStatus DecodeAdrInstruction(llvm::MCInst &Inst, uint32_t insn,
|
|
uint64_t Addr, const void *Decoder) {
|
|
unsigned Rd = fieldFromInstruction(insn, 0, 5);
|
|
int64_t imm = fieldFromInstruction(insn, 5, 19) << 2;
|
|
imm |= fieldFromInstruction(insn, 29, 2);
|
|
const ARM64Disassembler *Dis =
|
|
static_cast<const ARM64Disassembler *>(Decoder);
|
|
|
|
// Sign-extend the 21-bit immediate.
|
|
if (imm & (1 << (21 - 1)))
|
|
imm |= ~((1LL << 21) - 1);
|
|
|
|
DecodeGPR64RegisterClass(Inst, Rd, Addr, Decoder);
|
|
if (!Dis->tryAddingSymbolicOperand(Addr, imm, Fail, 4, Inst, insn))
|
|
Inst.addOperand(MCOperand::CreateImm(imm));
|
|
|
|
return Success;
|
|
}
|
|
|
|
static DecodeStatus DecodeBaseAddSubImm(llvm::MCInst &Inst, uint32_t insn,
|
|
uint64_t Addr, const void *Decoder) {
|
|
unsigned Rd = fieldFromInstruction(insn, 0, 5);
|
|
unsigned Rn = fieldFromInstruction(insn, 5, 5);
|
|
unsigned Imm = fieldFromInstruction(insn, 10, 14);
|
|
unsigned S = fieldFromInstruction(insn, 29, 1);
|
|
unsigned Datasize = fieldFromInstruction(insn, 31, 1);
|
|
|
|
unsigned ShifterVal = (Imm >> 12) & 3;
|
|
unsigned ImmVal = Imm & 0xFFF;
|
|
const ARM64Disassembler *Dis =
|
|
static_cast<const ARM64Disassembler *>(Decoder);
|
|
|
|
if (ShifterVal != 0 && ShifterVal != 1)
|
|
return Fail;
|
|
|
|
if (Datasize) {
|
|
if (Rd == 31 && !S)
|
|
DecodeGPR64spRegisterClass(Inst, Rd, Addr, Decoder);
|
|
else
|
|
DecodeGPR64RegisterClass(Inst, Rd, Addr, Decoder);
|
|
DecodeGPR64spRegisterClass(Inst, Rn, Addr, Decoder);
|
|
} else {
|
|
if (Rd == 31 && !S)
|
|
DecodeGPR32spRegisterClass(Inst, Rd, Addr, Decoder);
|
|
else
|
|
DecodeGPR32RegisterClass(Inst, Rd, Addr, Decoder);
|
|
DecodeGPR32spRegisterClass(Inst, Rn, Addr, Decoder);
|
|
}
|
|
|
|
if (!Dis->tryAddingSymbolicOperand(Addr, ImmVal, Fail, 4, Inst, insn))
|
|
Inst.addOperand(MCOperand::CreateImm(ImmVal));
|
|
Inst.addOperand(MCOperand::CreateImm(12 * ShifterVal));
|
|
return Success;
|
|
}
|
|
|
|
static DecodeStatus DecodeUnconditionalBranch(llvm::MCInst &Inst, uint32_t insn,
|
|
uint64_t Addr,
|
|
const void *Decoder) {
|
|
int64_t imm = fieldFromInstruction(insn, 0, 26);
|
|
const ARM64Disassembler *Dis =
|
|
static_cast<const ARM64Disassembler *>(Decoder);
|
|
|
|
// Sign-extend the 26-bit immediate.
|
|
if (imm & (1 << (26 - 1)))
|
|
imm |= ~((1LL << 26) - 1);
|
|
|
|
if (!Dis->tryAddingSymbolicOperand(Addr, imm << 2, true, 4, Inst))
|
|
Inst.addOperand(MCOperand::CreateImm(imm));
|
|
|
|
return Success;
|
|
}
|
|
|
|
static DecodeStatus DecodeSystemCPSRInstruction(llvm::MCInst &Inst,
|
|
uint32_t insn, uint64_t Addr,
|
|
const void *Decoder) {
|
|
uint64_t op1 = fieldFromInstruction(insn, 16, 3);
|
|
uint64_t op2 = fieldFromInstruction(insn, 5, 3);
|
|
uint64_t crm = fieldFromInstruction(insn, 8, 4);
|
|
|
|
Inst.addOperand(MCOperand::CreateImm((op1 << 3) | op2));
|
|
Inst.addOperand(MCOperand::CreateImm(crm));
|
|
|
|
return Success;
|
|
}
|
|
|
|
static DecodeStatus DecodeTestAndBranch(llvm::MCInst &Inst, uint32_t insn,
|
|
uint64_t Addr, const void *Decoder) {
|
|
uint64_t Rt = fieldFromInstruction(insn, 0, 5);
|
|
uint64_t bit = fieldFromInstruction(insn, 31, 1) << 5;
|
|
bit |= fieldFromInstruction(insn, 19, 5);
|
|
int64_t dst = fieldFromInstruction(insn, 5, 14);
|
|
const ARM64Disassembler *Dis =
|
|
static_cast<const ARM64Disassembler *>(Decoder);
|
|
|
|
// Sign-extend 14-bit immediate.
|
|
if (dst & (1 << (14 - 1)))
|
|
dst |= ~((1LL << 14) - 1);
|
|
|
|
DecodeGPR64RegisterClass(Inst, Rt, Addr, Decoder);
|
|
Inst.addOperand(MCOperand::CreateImm(bit));
|
|
if (!Dis->tryAddingSymbolicOperand(Addr, dst << 2, true, 4, Inst))
|
|
Inst.addOperand(MCOperand::CreateImm(dst));
|
|
|
|
return Success;
|
|
}
|
|
|
|
static DecodeStatus DecodeSIMDLdStPost(llvm::MCInst &Inst, uint32_t insn,
|
|
uint64_t Addr, const void *Decoder) {
|
|
uint64_t Rd = fieldFromInstruction(insn, 0, 5);
|
|
uint64_t Rn = fieldFromInstruction(insn, 5, 5);
|
|
uint64_t Rm = fieldFromInstruction(insn, 16, 5);
|
|
|
|
switch (Inst.getOpcode()) {
|
|
default:
|
|
return Fail;
|
|
case ARM64::ST1Onev8b_POST:
|
|
case ARM64::ST1Onev4h_POST:
|
|
case ARM64::ST1Onev2s_POST:
|
|
case ARM64::ST1Onev1d_POST:
|
|
case ARM64::LD1Onev8b_POST:
|
|
case ARM64::LD1Onev4h_POST:
|
|
case ARM64::LD1Onev2s_POST:
|
|
case ARM64::LD1Onev1d_POST:
|
|
DecodeFPR64RegisterClass(Inst, Rd, Addr, Decoder);
|
|
break;
|
|
case ARM64::ST1Onev16b_POST:
|
|
case ARM64::ST1Onev8h_POST:
|
|
case ARM64::ST1Onev4s_POST:
|
|
case ARM64::ST1Onev2d_POST:
|
|
case ARM64::LD1Onev16b_POST:
|
|
case ARM64::LD1Onev8h_POST:
|
|
case ARM64::LD1Onev4s_POST:
|
|
case ARM64::LD1Onev2d_POST:
|
|
DecodeFPR128RegisterClass(Inst, Rd, Addr, Decoder);
|
|
break;
|
|
case ARM64::ST1Twov8b_POST:
|
|
case ARM64::ST1Twov4h_POST:
|
|
case ARM64::ST1Twov2s_POST:
|
|
case ARM64::ST1Twov1d_POST:
|
|
case ARM64::ST2Twov8b_POST:
|
|
case ARM64::ST2Twov4h_POST:
|
|
case ARM64::ST2Twov2s_POST:
|
|
case ARM64::LD1Twov8b_POST:
|
|
case ARM64::LD1Twov4h_POST:
|
|
case ARM64::LD1Twov2s_POST:
|
|
case ARM64::LD1Twov1d_POST:
|
|
case ARM64::LD2Twov8b_POST:
|
|
case ARM64::LD2Twov4h_POST:
|
|
case ARM64::LD2Twov2s_POST:
|
|
DecodeDDRegisterClass(Inst, Rd, Addr, Decoder);
|
|
break;
|
|
case ARM64::ST1Threev8b_POST:
|
|
case ARM64::ST1Threev4h_POST:
|
|
case ARM64::ST1Threev2s_POST:
|
|
case ARM64::ST1Threev1d_POST:
|
|
case ARM64::ST3Threev8b_POST:
|
|
case ARM64::ST3Threev4h_POST:
|
|
case ARM64::ST3Threev2s_POST:
|
|
case ARM64::LD1Threev8b_POST:
|
|
case ARM64::LD1Threev4h_POST:
|
|
case ARM64::LD1Threev2s_POST:
|
|
case ARM64::LD1Threev1d_POST:
|
|
case ARM64::LD3Threev8b_POST:
|
|
case ARM64::LD3Threev4h_POST:
|
|
case ARM64::LD3Threev2s_POST:
|
|
DecodeDDDRegisterClass(Inst, Rd, Addr, Decoder);
|
|
break;
|
|
case ARM64::ST1Fourv8b_POST:
|
|
case ARM64::ST1Fourv4h_POST:
|
|
case ARM64::ST1Fourv2s_POST:
|
|
case ARM64::ST1Fourv1d_POST:
|
|
case ARM64::ST4Fourv8b_POST:
|
|
case ARM64::ST4Fourv4h_POST:
|
|
case ARM64::ST4Fourv2s_POST:
|
|
case ARM64::LD1Fourv8b_POST:
|
|
case ARM64::LD1Fourv4h_POST:
|
|
case ARM64::LD1Fourv2s_POST:
|
|
case ARM64::LD1Fourv1d_POST:
|
|
case ARM64::LD4Fourv8b_POST:
|
|
case ARM64::LD4Fourv4h_POST:
|
|
case ARM64::LD4Fourv2s_POST:
|
|
DecodeDDDDRegisterClass(Inst, Rd, Addr, Decoder);
|
|
break;
|
|
case ARM64::ST1Twov16b_POST:
|
|
case ARM64::ST1Twov8h_POST:
|
|
case ARM64::ST1Twov4s_POST:
|
|
case ARM64::ST1Twov2d_POST:
|
|
case ARM64::ST2Twov16b_POST:
|
|
case ARM64::ST2Twov8h_POST:
|
|
case ARM64::ST2Twov4s_POST:
|
|
case ARM64::ST2Twov2d_POST:
|
|
case ARM64::LD1Twov16b_POST:
|
|
case ARM64::LD1Twov8h_POST:
|
|
case ARM64::LD1Twov4s_POST:
|
|
case ARM64::LD1Twov2d_POST:
|
|
case ARM64::LD2Twov16b_POST:
|
|
case ARM64::LD2Twov8h_POST:
|
|
case ARM64::LD2Twov4s_POST:
|
|
case ARM64::LD2Twov2d_POST:
|
|
DecodeQQRegisterClass(Inst, Rd, Addr, Decoder);
|
|
break;
|
|
case ARM64::ST1Threev16b_POST:
|
|
case ARM64::ST1Threev8h_POST:
|
|
case ARM64::ST1Threev4s_POST:
|
|
case ARM64::ST1Threev2d_POST:
|
|
case ARM64::ST3Threev16b_POST:
|
|
case ARM64::ST3Threev8h_POST:
|
|
case ARM64::ST3Threev4s_POST:
|
|
case ARM64::ST3Threev2d_POST:
|
|
case ARM64::LD1Threev16b_POST:
|
|
case ARM64::LD1Threev8h_POST:
|
|
case ARM64::LD1Threev4s_POST:
|
|
case ARM64::LD1Threev2d_POST:
|
|
case ARM64::LD3Threev16b_POST:
|
|
case ARM64::LD3Threev8h_POST:
|
|
case ARM64::LD3Threev4s_POST:
|
|
case ARM64::LD3Threev2d_POST:
|
|
DecodeQQQRegisterClass(Inst, Rd, Addr, Decoder);
|
|
break;
|
|
case ARM64::ST1Fourv16b_POST:
|
|
case ARM64::ST1Fourv8h_POST:
|
|
case ARM64::ST1Fourv4s_POST:
|
|
case ARM64::ST1Fourv2d_POST:
|
|
case ARM64::ST4Fourv16b_POST:
|
|
case ARM64::ST4Fourv8h_POST:
|
|
case ARM64::ST4Fourv4s_POST:
|
|
case ARM64::ST4Fourv2d_POST:
|
|
case ARM64::LD1Fourv16b_POST:
|
|
case ARM64::LD1Fourv8h_POST:
|
|
case ARM64::LD1Fourv4s_POST:
|
|
case ARM64::LD1Fourv2d_POST:
|
|
case ARM64::LD4Fourv16b_POST:
|
|
case ARM64::LD4Fourv8h_POST:
|
|
case ARM64::LD4Fourv4s_POST:
|
|
case ARM64::LD4Fourv2d_POST:
|
|
DecodeQQQQRegisterClass(Inst, Rd, Addr, Decoder);
|
|
break;
|
|
}
|
|
|
|
DecodeGPR64spRegisterClass(Inst, Rn, Addr, Decoder);
|
|
DecodeGPR64RegisterClass(Inst, Rm, Addr, Decoder);
|
|
return Success;
|
|
}
|
|
|
|
static DecodeStatus DecodeSIMDLdStSingle(llvm::MCInst &Inst, uint32_t insn,
|
|
uint64_t Addr, const void *Decoder) {
|
|
uint64_t Rt = fieldFromInstruction(insn, 0, 5);
|
|
uint64_t Rn = fieldFromInstruction(insn, 5, 5);
|
|
uint64_t Rm = fieldFromInstruction(insn, 16, 5);
|
|
uint64_t size = fieldFromInstruction(insn, 10, 2);
|
|
uint64_t S = fieldFromInstruction(insn, 12, 1);
|
|
uint64_t Q = fieldFromInstruction(insn, 30, 1);
|
|
uint64_t index = 0;
|
|
|
|
switch (Inst.getOpcode()) {
|
|
case ARM64::ST1i8:
|
|
case ARM64::ST1i8_POST:
|
|
case ARM64::ST2i8:
|
|
case ARM64::ST2i8_POST:
|
|
case ARM64::ST3i8_POST:
|
|
case ARM64::ST3i8:
|
|
case ARM64::ST4i8_POST:
|
|
case ARM64::ST4i8:
|
|
index = (Q << 3) | (S << 2) | size;
|
|
break;
|
|
case ARM64::ST1i16:
|
|
case ARM64::ST1i16_POST:
|
|
case ARM64::ST2i16:
|
|
case ARM64::ST2i16_POST:
|
|
case ARM64::ST3i16_POST:
|
|
case ARM64::ST3i16:
|
|
case ARM64::ST4i16_POST:
|
|
case ARM64::ST4i16:
|
|
index = (Q << 2) | (S << 1) | (size >> 1);
|
|
break;
|
|
case ARM64::ST1i32:
|
|
case ARM64::ST1i32_POST:
|
|
case ARM64::ST2i32:
|
|
case ARM64::ST2i32_POST:
|
|
case ARM64::ST3i32_POST:
|
|
case ARM64::ST3i32:
|
|
case ARM64::ST4i32_POST:
|
|
case ARM64::ST4i32:
|
|
index = (Q << 1) | S;
|
|
break;
|
|
case ARM64::ST1i64:
|
|
case ARM64::ST1i64_POST:
|
|
case ARM64::ST2i64:
|
|
case ARM64::ST2i64_POST:
|
|
case ARM64::ST3i64_POST:
|
|
case ARM64::ST3i64:
|
|
case ARM64::ST4i64_POST:
|
|
case ARM64::ST4i64:
|
|
index = Q;
|
|
break;
|
|
}
|
|
|
|
switch (Inst.getOpcode()) {
|
|
default:
|
|
return Fail;
|
|
case ARM64::LD1Rv8b:
|
|
case ARM64::LD1Rv8b_POST:
|
|
case ARM64::LD1Rv4h:
|
|
case ARM64::LD1Rv4h_POST:
|
|
case ARM64::LD1Rv2s:
|
|
case ARM64::LD1Rv2s_POST:
|
|
case ARM64::LD1Rv1d:
|
|
case ARM64::LD1Rv1d_POST:
|
|
DecodeFPR64RegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
case ARM64::LD1Rv16b:
|
|
case ARM64::LD1Rv16b_POST:
|
|
case ARM64::LD1Rv8h:
|
|
case ARM64::LD1Rv8h_POST:
|
|
case ARM64::LD1Rv4s:
|
|
case ARM64::LD1Rv4s_POST:
|
|
case ARM64::LD1Rv2d:
|
|
case ARM64::LD1Rv2d_POST:
|
|
case ARM64::ST1i8:
|
|
case ARM64::ST1i8_POST:
|
|
case ARM64::ST1i16:
|
|
case ARM64::ST1i16_POST:
|
|
case ARM64::ST1i32:
|
|
case ARM64::ST1i32_POST:
|
|
case ARM64::ST1i64:
|
|
case ARM64::ST1i64_POST:
|
|
DecodeFPR128RegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
case ARM64::LD2Rv16b:
|
|
case ARM64::LD2Rv16b_POST:
|
|
case ARM64::LD2Rv8h:
|
|
case ARM64::LD2Rv8h_POST:
|
|
case ARM64::LD2Rv4s:
|
|
case ARM64::LD2Rv4s_POST:
|
|
case ARM64::LD2Rv2d:
|
|
case ARM64::LD2Rv2d_POST:
|
|
case ARM64::ST2i8:
|
|
case ARM64::ST2i8_POST:
|
|
case ARM64::ST2i16:
|
|
case ARM64::ST2i16_POST:
|
|
case ARM64::ST2i32:
|
|
case ARM64::ST2i32_POST:
|
|
case ARM64::ST2i64:
|
|
case ARM64::ST2i64_POST:
|
|
DecodeQQRegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
case ARM64::LD2Rv8b:
|
|
case ARM64::LD2Rv8b_POST:
|
|
case ARM64::LD2Rv4h:
|
|
case ARM64::LD2Rv4h_POST:
|
|
case ARM64::LD2Rv2s:
|
|
case ARM64::LD2Rv2s_POST:
|
|
case ARM64::LD2Rv1d:
|
|
case ARM64::LD2Rv1d_POST:
|
|
DecodeDDRegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
case ARM64::LD3Rv8b:
|
|
case ARM64::LD3Rv8b_POST:
|
|
case ARM64::LD3Rv4h:
|
|
case ARM64::LD3Rv4h_POST:
|
|
case ARM64::LD3Rv2s:
|
|
case ARM64::LD3Rv2s_POST:
|
|
case ARM64::LD3Rv1d:
|
|
case ARM64::LD3Rv1d_POST:
|
|
DecodeDDDRegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
case ARM64::LD3Rv16b:
|
|
case ARM64::LD3Rv16b_POST:
|
|
case ARM64::LD3Rv8h:
|
|
case ARM64::LD3Rv8h_POST:
|
|
case ARM64::LD3Rv4s:
|
|
case ARM64::LD3Rv4s_POST:
|
|
case ARM64::LD3Rv2d:
|
|
case ARM64::LD3Rv2d_POST:
|
|
case ARM64::ST3i8:
|
|
case ARM64::ST3i8_POST:
|
|
case ARM64::ST3i16:
|
|
case ARM64::ST3i16_POST:
|
|
case ARM64::ST3i32:
|
|
case ARM64::ST3i32_POST:
|
|
case ARM64::ST3i64:
|
|
case ARM64::ST3i64_POST:
|
|
DecodeQQQRegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
case ARM64::LD4Rv8b:
|
|
case ARM64::LD4Rv8b_POST:
|
|
case ARM64::LD4Rv4h:
|
|
case ARM64::LD4Rv4h_POST:
|
|
case ARM64::LD4Rv2s:
|
|
case ARM64::LD4Rv2s_POST:
|
|
case ARM64::LD4Rv1d:
|
|
case ARM64::LD4Rv1d_POST:
|
|
DecodeDDDDRegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
case ARM64::LD4Rv16b:
|
|
case ARM64::LD4Rv16b_POST:
|
|
case ARM64::LD4Rv8h:
|
|
case ARM64::LD4Rv8h_POST:
|
|
case ARM64::LD4Rv4s:
|
|
case ARM64::LD4Rv4s_POST:
|
|
case ARM64::LD4Rv2d:
|
|
case ARM64::LD4Rv2d_POST:
|
|
case ARM64::ST4i8:
|
|
case ARM64::ST4i8_POST:
|
|
case ARM64::ST4i16:
|
|
case ARM64::ST4i16_POST:
|
|
case ARM64::ST4i32:
|
|
case ARM64::ST4i32_POST:
|
|
case ARM64::ST4i64:
|
|
case ARM64::ST4i64_POST:
|
|
DecodeQQQQRegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
}
|
|
|
|
switch (Inst.getOpcode()) {
|
|
case ARM64::LD1Rv8b:
|
|
case ARM64::LD1Rv8b_POST:
|
|
case ARM64::LD1Rv16b:
|
|
case ARM64::LD1Rv16b_POST:
|
|
case ARM64::LD1Rv4h:
|
|
case ARM64::LD1Rv4h_POST:
|
|
case ARM64::LD1Rv8h:
|
|
case ARM64::LD1Rv8h_POST:
|
|
case ARM64::LD1Rv4s:
|
|
case ARM64::LD1Rv4s_POST:
|
|
case ARM64::LD1Rv2s:
|
|
case ARM64::LD1Rv2s_POST:
|
|
case ARM64::LD1Rv1d:
|
|
case ARM64::LD1Rv1d_POST:
|
|
case ARM64::LD1Rv2d:
|
|
case ARM64::LD1Rv2d_POST:
|
|
case ARM64::LD2Rv8b:
|
|
case ARM64::LD2Rv8b_POST:
|
|
case ARM64::LD2Rv16b:
|
|
case ARM64::LD2Rv16b_POST:
|
|
case ARM64::LD2Rv4h:
|
|
case ARM64::LD2Rv4h_POST:
|
|
case ARM64::LD2Rv8h:
|
|
case ARM64::LD2Rv8h_POST:
|
|
case ARM64::LD2Rv2s:
|
|
case ARM64::LD2Rv2s_POST:
|
|
case ARM64::LD2Rv4s:
|
|
case ARM64::LD2Rv4s_POST:
|
|
case ARM64::LD2Rv2d:
|
|
case ARM64::LD2Rv2d_POST:
|
|
case ARM64::LD2Rv1d:
|
|
case ARM64::LD2Rv1d_POST:
|
|
case ARM64::LD3Rv8b:
|
|
case ARM64::LD3Rv8b_POST:
|
|
case ARM64::LD3Rv16b:
|
|
case ARM64::LD3Rv16b_POST:
|
|
case ARM64::LD3Rv4h:
|
|
case ARM64::LD3Rv4h_POST:
|
|
case ARM64::LD3Rv8h:
|
|
case ARM64::LD3Rv8h_POST:
|
|
case ARM64::LD3Rv2s:
|
|
case ARM64::LD3Rv2s_POST:
|
|
case ARM64::LD3Rv4s:
|
|
case ARM64::LD3Rv4s_POST:
|
|
case ARM64::LD3Rv2d:
|
|
case ARM64::LD3Rv2d_POST:
|
|
case ARM64::LD3Rv1d:
|
|
case ARM64::LD3Rv1d_POST:
|
|
case ARM64::LD4Rv8b:
|
|
case ARM64::LD4Rv8b_POST:
|
|
case ARM64::LD4Rv16b:
|
|
case ARM64::LD4Rv16b_POST:
|
|
case ARM64::LD4Rv4h:
|
|
case ARM64::LD4Rv4h_POST:
|
|
case ARM64::LD4Rv8h:
|
|
case ARM64::LD4Rv8h_POST:
|
|
case ARM64::LD4Rv2s:
|
|
case ARM64::LD4Rv2s_POST:
|
|
case ARM64::LD4Rv4s:
|
|
case ARM64::LD4Rv4s_POST:
|
|
case ARM64::LD4Rv2d:
|
|
case ARM64::LD4Rv2d_POST:
|
|
case ARM64::LD4Rv1d:
|
|
case ARM64::LD4Rv1d_POST:
|
|
break;
|
|
default:
|
|
Inst.addOperand(MCOperand::CreateImm(index));
|
|
}
|
|
|
|
DecodeGPR64RegisterClass(Inst, Rn, Addr, Decoder);
|
|
|
|
switch (Inst.getOpcode()) {
|
|
case ARM64::ST1i8_POST:
|
|
case ARM64::ST1i16_POST:
|
|
case ARM64::ST1i32_POST:
|
|
case ARM64::ST1i64_POST:
|
|
case ARM64::LD1Rv8b_POST:
|
|
case ARM64::LD1Rv16b_POST:
|
|
case ARM64::LD1Rv4h_POST:
|
|
case ARM64::LD1Rv8h_POST:
|
|
case ARM64::LD1Rv2s_POST:
|
|
case ARM64::LD1Rv4s_POST:
|
|
case ARM64::LD1Rv1d_POST:
|
|
case ARM64::LD1Rv2d_POST:
|
|
case ARM64::ST2i8_POST:
|
|
case ARM64::ST2i16_POST:
|
|
case ARM64::ST2i32_POST:
|
|
case ARM64::ST2i64_POST:
|
|
case ARM64::LD2Rv8b_POST:
|
|
case ARM64::LD2Rv16b_POST:
|
|
case ARM64::LD2Rv4h_POST:
|
|
case ARM64::LD2Rv8h_POST:
|
|
case ARM64::LD2Rv2s_POST:
|
|
case ARM64::LD2Rv4s_POST:
|
|
case ARM64::LD2Rv2d_POST:
|
|
case ARM64::LD2Rv1d_POST:
|
|
case ARM64::ST3i8_POST:
|
|
case ARM64::ST3i16_POST:
|
|
case ARM64::ST3i32_POST:
|
|
case ARM64::ST3i64_POST:
|
|
case ARM64::LD3Rv8b_POST:
|
|
case ARM64::LD3Rv16b_POST:
|
|
case ARM64::LD3Rv4h_POST:
|
|
case ARM64::LD3Rv8h_POST:
|
|
case ARM64::LD3Rv2s_POST:
|
|
case ARM64::LD3Rv4s_POST:
|
|
case ARM64::LD3Rv2d_POST:
|
|
case ARM64::LD3Rv1d_POST:
|
|
case ARM64::ST4i8_POST:
|
|
case ARM64::ST4i16_POST:
|
|
case ARM64::ST4i32_POST:
|
|
case ARM64::ST4i64_POST:
|
|
case ARM64::LD4Rv8b_POST:
|
|
case ARM64::LD4Rv16b_POST:
|
|
case ARM64::LD4Rv4h_POST:
|
|
case ARM64::LD4Rv8h_POST:
|
|
case ARM64::LD4Rv2s_POST:
|
|
case ARM64::LD4Rv4s_POST:
|
|
case ARM64::LD4Rv2d_POST:
|
|
case ARM64::LD4Rv1d_POST:
|
|
DecodeGPR64RegisterClass(Inst, Rm, Addr, Decoder);
|
|
break;
|
|
}
|
|
return Success;
|
|
}
|
|
|
|
static DecodeStatus DecodeSIMDLdStSingleTied(llvm::MCInst &Inst, uint32_t insn,
|
|
uint64_t Addr,
|
|
const void *Decoder) {
|
|
uint64_t Rt = fieldFromInstruction(insn, 0, 5);
|
|
uint64_t Rn = fieldFromInstruction(insn, 5, 5);
|
|
uint64_t Rm = fieldFromInstruction(insn, 16, 5);
|
|
uint64_t size = fieldFromInstruction(insn, 10, 2);
|
|
uint64_t S = fieldFromInstruction(insn, 12, 1);
|
|
uint64_t Q = fieldFromInstruction(insn, 30, 1);
|
|
uint64_t index = 0;
|
|
|
|
switch (Inst.getOpcode()) {
|
|
case ARM64::LD1i8:
|
|
case ARM64::LD1i8_POST:
|
|
case ARM64::LD2i8:
|
|
case ARM64::LD2i8_POST:
|
|
case ARM64::LD3i8_POST:
|
|
case ARM64::LD3i8:
|
|
case ARM64::LD4i8_POST:
|
|
case ARM64::LD4i8:
|
|
index = (Q << 3) | (S << 2) | size;
|
|
break;
|
|
case ARM64::LD1i16:
|
|
case ARM64::LD1i16_POST:
|
|
case ARM64::LD2i16:
|
|
case ARM64::LD2i16_POST:
|
|
case ARM64::LD3i16_POST:
|
|
case ARM64::LD3i16:
|
|
case ARM64::LD4i16_POST:
|
|
case ARM64::LD4i16:
|
|
index = (Q << 2) | (S << 1) | (size >> 1);
|
|
break;
|
|
case ARM64::LD1i32:
|
|
case ARM64::LD1i32_POST:
|
|
case ARM64::LD2i32:
|
|
case ARM64::LD2i32_POST:
|
|
case ARM64::LD3i32_POST:
|
|
case ARM64::LD3i32:
|
|
case ARM64::LD4i32_POST:
|
|
case ARM64::LD4i32:
|
|
index = (Q << 1) | S;
|
|
break;
|
|
case ARM64::LD1i64:
|
|
case ARM64::LD1i64_POST:
|
|
case ARM64::LD2i64:
|
|
case ARM64::LD2i64_POST:
|
|
case ARM64::LD3i64_POST:
|
|
case ARM64::LD3i64:
|
|
case ARM64::LD4i64_POST:
|
|
case ARM64::LD4i64:
|
|
index = Q;
|
|
break;
|
|
}
|
|
|
|
switch (Inst.getOpcode()) {
|
|
default:
|
|
return Fail;
|
|
case ARM64::LD1i8:
|
|
case ARM64::LD1i8_POST:
|
|
case ARM64::LD1i16:
|
|
case ARM64::LD1i16_POST:
|
|
case ARM64::LD1i32:
|
|
case ARM64::LD1i32_POST:
|
|
case ARM64::LD1i64:
|
|
case ARM64::LD1i64_POST:
|
|
DecodeFPR128RegisterClass(Inst, Rt, Addr, Decoder);
|
|
DecodeFPR128RegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
case ARM64::LD2i8:
|
|
case ARM64::LD2i8_POST:
|
|
case ARM64::LD2i16:
|
|
case ARM64::LD2i16_POST:
|
|
case ARM64::LD2i32:
|
|
case ARM64::LD2i32_POST:
|
|
case ARM64::LD2i64:
|
|
case ARM64::LD2i64_POST:
|
|
DecodeQQRegisterClass(Inst, Rt, Addr, Decoder);
|
|
DecodeQQRegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
case ARM64::LD3i8:
|
|
case ARM64::LD3i8_POST:
|
|
case ARM64::LD3i16:
|
|
case ARM64::LD3i16_POST:
|
|
case ARM64::LD3i32:
|
|
case ARM64::LD3i32_POST:
|
|
case ARM64::LD3i64:
|
|
case ARM64::LD3i64_POST:
|
|
DecodeQQQRegisterClass(Inst, Rt, Addr, Decoder);
|
|
DecodeQQQRegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
case ARM64::LD4i8:
|
|
case ARM64::LD4i8_POST:
|
|
case ARM64::LD4i16:
|
|
case ARM64::LD4i16_POST:
|
|
case ARM64::LD4i32:
|
|
case ARM64::LD4i32_POST:
|
|
case ARM64::LD4i64:
|
|
case ARM64::LD4i64_POST:
|
|
DecodeQQQQRegisterClass(Inst, Rt, Addr, Decoder);
|
|
DecodeQQQQRegisterClass(Inst, Rt, Addr, Decoder);
|
|
break;
|
|
}
|
|
|
|
Inst.addOperand(MCOperand::CreateImm(index));
|
|
DecodeGPR64RegisterClass(Inst, Rn, Addr, Decoder);
|
|
|
|
switch (Inst.getOpcode()) {
|
|
case ARM64::LD1i8_POST:
|
|
case ARM64::LD1i16_POST:
|
|
case ARM64::LD1i32_POST:
|
|
case ARM64::LD1i64_POST:
|
|
case ARM64::LD2i8_POST:
|
|
case ARM64::LD2i16_POST:
|
|
case ARM64::LD2i32_POST:
|
|
case ARM64::LD2i64_POST:
|
|
case ARM64::LD3i8_POST:
|
|
case ARM64::LD3i16_POST:
|
|
case ARM64::LD3i32_POST:
|
|
case ARM64::LD3i64_POST:
|
|
case ARM64::LD4i8_POST:
|
|
case ARM64::LD4i16_POST:
|
|
case ARM64::LD4i32_POST:
|
|
case ARM64::LD4i64_POST:
|
|
DecodeGPR64RegisterClass(Inst, Rm, Addr, Decoder);
|
|
break;
|
|
}
|
|
return Success;
|
|
}
|